261057720

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{1487}}^1$

素因数の和:1538

約数の個数: 256

約数和(自身を含む): 1028505600

約数和(自身を除く): 767447880

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 11, 12, 14, 15, 19, 20, 21, 22, 24, 28, 30, 33, 35, 38, 40, 42, 44, 55, 56, 57, 60, 66, 70, 76, 77, 84, 88, 95, 105, 110, 114, 120, 132, 133, 140, 152, 154, 165, 168, 190, 209, 210, 220, 228, 231, 264, 266, 280, 285, 308, 330, 380, 385, 399, 418, 420, 440, 456, 462, 532, 570, 616, 627, 660, 665, 760, 770, 798, 836, 840, 924, 1045, 1064, 1140, 1155, 1254, 1320, 1330, 1463, 1487, 1540, 1596, 1672, 1848, 1995, 2090, 2280, 2310, 2508, 2660, 2926, 2974, 3080, 3135, 3192, 3990, 4180, 4389, 4461, 4620, 5016, 5320, 5852, 5948, 6270, 7315, 7435, 7980, 8360, 8778, 8922, 9240, 10409, 11704, 11896, 12540, 14630, 14870, 15960, 16357, 17556, 17844, 20818, 21945, 22305, 25080, 28253, 29260, 29740, 31227, 32714, 35112, 35688, 41636, 43890, 44610, 49071, 52045, 56506, 58520, 59480, 62454, 65428, 81785, 83272, 84759, 87780, 89220, 98142, 104090, 113012, 114499, 124908, 130856, 141265, 156135, 163570, 169518, 175560, 178440, 196284, 197771, 208180, 226024, 228998, 245355, 249816, 282530, 310783, 312270, 327140, 339036, 343497, 392568, 395542, 416360, 423795, 457996, 490710, 565060, 572495, 593313, 621566, 624540, 654280, 678072, 686994, 791084, 847590, 915992, 932349, 981420, 988855, 1130120, 1144990, 1186626, 1243132, 1249080, 1373988, 1553915, 1582168, 1695180, 1717485, 1864698, 1962840, 1977710, 2175481, 2289980, 2373252, 2486264, 2747976, 2966565, 3107830, 3390360, 3434970, 3729396, 3955420, 4350962, 4579960, 4661745, 4746504, 5933130, 6215660, 6526443, 6869940, 7458792, 7910840, 8701924, 9323490, 10877405, 11866260, 12431320, 13052886, 13739880, 17403848, 18646980, 21754810, 23732520, 26105772, 32632215, 37293960, 43509620, 52211544, 65264430, 87019240, 130528860, 261057720]

約数ペア:

[(1, 261057720), (2, 130528860), (3, 87019240), (4, 65264430), (5, 52211544), (6, 43509620), (7, 37293960), (8, 32632215), (10, 26105772), (11, 23732520), (12, 21754810), (14, 18646980), (15, 17403848), (19, 13739880), (20, 13052886), (21, 12431320), (22, 11866260), (24, 10877405), (28, 9323490), (30, 8701924), (33, 7910840), (35, 7458792), (38, 6869940), (40, 6526443), (42, 6215660), (44, 5933130), (55, 4746504), (56, 4661745), (57, 4579960), (60, 4350962), (66, 3955420), (70, 3729396), (76, 3434970), (77, 3390360), (84, 3107830), (88, 2966565), (95, 2747976), (105, 2486264), (110, 2373252), (114, 2289980), (120, 2175481), (132, 1977710), (133, 1962840), (140, 1864698), (152, 1717485), (154, 1695180), (165, 1582168), (168, 1553915), (190, 1373988), (209, 1249080), (210, 1243132), (220, 1186626), (228, 1144990), (231, 1130120), (264, 988855), (266, 981420), (280, 932349), (285, 915992), (308, 847590), (330, 791084), (380, 686994), (385, 678072), (399, 654280), (418, 624540), (420, 621566), (440, 593313), (456, 572495), (462, 565060), (532, 490710), (570, 457996), (616, 423795), (627, 416360), (660, 395542), (665, 392568), (760, 343497), (770, 339036), (798, 327140), (836, 312270), (840, 310783), (924, 282530), (1045, 249816), (1064, 245355), (1140, 228998), (1155, 226024), (1254, 208180), (1320, 197771), (1330, 196284), (1463, 178440), (1487, 175560), (1540, 169518), (1596, 163570), (1672, 156135), (1848, 141265), (1995, 130856), (2090, 124908), (2280, 114499), (2310, 113012), (2508, 104090), (2660, 98142), (2926, 89220), (2974, 87780), (3080, 84759), (3135, 83272), (3192, 81785), (3990, 65428), (4180, 62454), (4389, 59480), (4461, 58520), (4620, 56506), (5016, 52045), (5320, 49071), (5852, 44610), (5948, 43890), (6270, 41636), (7315, 35688), (7435, 35112), (7980, 32714), (8360, 31227), (8778, 29740), (8922, 29260), (9240, 28253), (10409, 25080), (11704, 22305), (11896, 21945), (12540, 20818), (14630, 17844), (14870, 17556), (15960, 16357)]