749980360

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{379}}^1\times {\mathrm{811}}^1$

素因数の和:1262

約数の個数: 64

約数和(自身を含む): 1721764800

約数和(自身を除く): 971784440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 379, 488, 610, 758, 811, 1220, 1516, 1622, 1895, 2440, 3032, 3244, 3790, 4055, 6488, 7580, 8110, 15160, 16220, 23119, 32440, 46238, 49471, 92476, 98942, 115595, 184952, 197884, 231190, 247355, 307369, 395768, 462380, 494710, 614738, 924760, 989420, 1229476, 1536845, 1978840, 2458952, 3073690, 6147380, 12294760, 18749509, 37499018, 74998036, 93747545, 149996072, 187495090, 374990180, 749980360]

約数ペア:

[(1, 749980360), (2, 374990180), (4, 187495090), (5, 149996072), (8, 93747545), (10, 74998036), (20, 37499018), (40, 18749509), (61, 12294760), (122, 6147380), (244, 3073690), (305, 2458952), (379, 1978840), (488, 1536845), (610, 1229476), (758, 989420), (811, 924760), (1220, 614738), (1516, 494710), (1622, 462380), (1895, 395768), (2440, 307369), (3032, 247355), (3244, 231190), (3790, 197884), (4055, 184952), (6488, 115595), (7580, 98942), (8110, 92476), (15160, 49471), (16220, 46238), (23119, 32440)]