28378020

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1$

素因数の和:146

約数の個数: 192

約数和(自身を含む): 95477760

約数和(自身を除く): 67099740

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 19, 20, 22, 30, 31, 33, 38, 44, 55, 57, 60, 62, 66, 73, 76, 93, 95, 110, 114, 124, 132, 146, 155, 165, 186, 190, 209, 219, 220, 228, 285, 292, 310, 330, 341, 365, 372, 380, 418, 438, 465, 570, 589, 620, 627, 660, 682, 730, 803, 836, 876, 930, 1023, 1045, 1095, 1140, 1178, 1254, 1364, 1387, 1460, 1606, 1705, 1767, 1860, 2046, 2090, 2190, 2263, 2356, 2409, 2508, 2774, 2945, 3135, 3212, 3410, 3534, 4015, 4092, 4161, 4180, 4380, 4526, 4818, 5115, 5548, 5890, 6270, 6479, 6789, 6820, 6935, 7068, 8030, 8322, 8835, 9052, 9636, 10230, 11315, 11780, 12045, 12540, 12958, 13578, 13870, 15257, 16060, 16644, 17670, 19437, 20460, 20805, 22630, 24090, 24893, 25916, 27156, 27740, 30514, 32395, 33945, 35340, 38874, 41610, 42997, 45260, 45771, 48180, 49786, 61028, 64790, 67890, 74679, 76285, 77748, 83220, 85994, 91542, 97185, 99572, 124465, 128991, 129580, 135780, 149358, 152570, 171988, 183084, 194370, 214985, 228855, 248930, 257982, 298716, 305140, 373395, 388740, 429970, 457710, 472967, 497860, 515964, 644955, 746790, 859940, 915420, 945934, 1289910, 1418901, 1493580, 1891868, 2364835, 2579820, 2837802, 4729670, 5675604, 7094505, 9459340, 14189010, 28378020]

約数ペア:

[(1, 28378020), (2, 14189010), (3, 9459340), (4, 7094505), (5, 5675604), (6, 4729670), (10, 2837802), (11, 2579820), (12, 2364835), (15, 1891868), (19, 1493580), (20, 1418901), (22, 1289910), (30, 945934), (31, 915420), (33, 859940), (38, 746790), (44, 644955), (55, 515964), (57, 497860), (60, 472967), (62, 457710), (66, 429970), (73, 388740), (76, 373395), (93, 305140), (95, 298716), (110, 257982), (114, 248930), (124, 228855), (132, 214985), (146, 194370), (155, 183084), (165, 171988), (186, 152570), (190, 149358), (209, 135780), (219, 129580), (220, 128991), (228, 124465), (285, 99572), (292, 97185), (310, 91542), (330, 85994), (341, 83220), (365, 77748), (372, 76285), (380, 74679), (418, 67890), (438, 64790), (465, 61028), (570, 49786), (589, 48180), (620, 45771), (627, 45260), (660, 42997), (682, 41610), (730, 38874), (803, 35340), (836, 33945), (876, 32395), (930, 30514), (1023, 27740), (1045, 27156), (1095, 25916), (1140, 24893), (1178, 24090), (1254, 22630), (1364, 20805), (1387, 20460), (1460, 19437), (1606, 17670), (1705, 16644), (1767, 16060), (1860, 15257), (2046, 13870), (2090, 13578), (2190, 12958), (2263, 12540), (2356, 12045), (2409, 11780), (2508, 11315), (2774, 10230), (2945, 9636), (3135, 9052), (3212, 8835), (3410, 8322), (3534, 8030), (4015, 7068), (4092, 6935), (4161, 6820), (4180, 6789), (4380, 6479), (4526, 6270), (4818, 5890), (5115, 5548)]