251910828

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{31663}}^1$

素因数の和:31703

約数の個数: 72

約数和(自身を含む): 726118848

約数和(自身を除く): 474208020

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 17, 18, 26, 34, 36, 39, 51, 52, 68, 78, 102, 117, 153, 156, 204, 221, 234, 306, 442, 468, 612, 663, 884, 1326, 1989, 2652, 3978, 7956, 31663, 63326, 94989, 126652, 189978, 284967, 379956, 411619, 538271, 569934, 823238, 1076542, 1139868, 1234857, 1614813, 1646476, 2153084, 2469714, 3229626, 3704571, 4844439, 4939428, 6459252, 6997523, 7409142, 9688878, 13995046, 14818284, 19377756, 20992569, 27990092, 41985138, 62977707, 83970276, 125955414, 251910828]

約数ペア:

[(1, 251910828), (2, 125955414), (3, 83970276), (4, 62977707), (6, 41985138), (9, 27990092), (12, 20992569), (13, 19377756), (17, 14818284), (18, 13995046), (26, 9688878), (34, 7409142), (36, 6997523), (39, 6459252), (51, 4939428), (52, 4844439), (68, 3704571), (78, 3229626), (102, 2469714), (117, 2153084), (153, 1646476), (156, 1614813), (204, 1234857), (221, 1139868), (234, 1076542), (306, 823238), (442, 569934), (468, 538271), (612, 411619), (663, 379956), (884, 284967), (1326, 189978), (1989, 126652), (2652, 94989), (3978, 63326), (7956, 31663)]