257960340

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{6857}}^1$

素因数の和:6902

約数の個数: 144

約数和(自身を含む): 898672320

約数和(自身を除く): 640711980

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 19, 20, 22, 30, 33, 36, 38, 44, 45, 55, 57, 60, 66, 76, 90, 95, 99, 110, 114, 132, 165, 171, 180, 190, 198, 209, 220, 228, 285, 330, 342, 380, 396, 418, 495, 570, 627, 660, 684, 836, 855, 990, 1045, 1140, 1254, 1710, 1881, 1980, 2090, 2508, 3135, 3420, 3762, 4180, 6270, 6857, 7524, 9405, 12540, 13714, 18810, 20571, 27428, 34285, 37620, 41142, 61713, 68570, 75427, 82284, 102855, 123426, 130283, 137140, 150854, 205710, 226281, 246852, 260566, 301708, 308565, 377135, 390849, 411420, 452562, 521132, 617130, 651415, 678843, 754270, 781698, 905124, 1131405, 1172547, 1234260, 1302830, 1357686, 1433113, 1508540, 1563396, 1954245, 2262810, 2345094, 2605660, 2715372, 2866226, 3394215, 3908490, 4299339, 4525620, 4690188, 5732452, 5862735, 6788430, 7165565, 7816980, 8598678, 11725470, 12898017, 13576860, 14331130, 17197356, 21496695, 23450940, 25796034, 28662260, 42993390, 51592068, 64490085, 85986780, 128980170, 257960340]

約数ペア:

[(1, 257960340), (2, 128980170), (3, 85986780), (4, 64490085), (5, 51592068), (6, 42993390), (9, 28662260), (10, 25796034), (11, 23450940), (12, 21496695), (15, 17197356), (18, 14331130), (19, 13576860), (20, 12898017), (22, 11725470), (30, 8598678), (33, 7816980), (36, 7165565), (38, 6788430), (44, 5862735), (45, 5732452), (55, 4690188), (57, 4525620), (60, 4299339), (66, 3908490), (76, 3394215), (90, 2866226), (95, 2715372), (99, 2605660), (110, 2345094), (114, 2262810), (132, 1954245), (165, 1563396), (171, 1508540), (180, 1433113), (190, 1357686), (198, 1302830), (209, 1234260), (220, 1172547), (228, 1131405), (285, 905124), (330, 781698), (342, 754270), (380, 678843), (396, 651415), (418, 617130), (495, 521132), (570, 452562), (627, 411420), (660, 390849), (684, 377135), (836, 308565), (855, 301708), (990, 260566), (1045, 246852), (1140, 226281), (1254, 205710), (1710, 150854), (1881, 137140), (1980, 130283), (2090, 123426), (2508, 102855), (3135, 82284), (3420, 75427), (3762, 68570), (4180, 61713), (6270, 41142), (6857, 37620), (7524, 34285), (9405, 27428), (12540, 20571), (13714, 18810)]