81678750

素因数分解:

$2^1\times 3^1\times 5^4\times {\mathrm{23}}^1\times {\mathrm{947}}^1$

素因数の和:995

約数の個数: 80

約数和(自身を含む): 213231744

約数和(自身を除く): 131552994

約数列:

[1, 2, 3, 5, 6, 10, 15, 23, 25, 30, 46, 50, 69, 75, 115, 125, 138, 150, 230, 250, 345, 375, 575, 625, 690, 750, 947, 1150, 1250, 1725, 1875, 1894, 2841, 2875, 3450, 3750, 4735, 5682, 5750, 8625, 9470, 14205, 14375, 17250, 21781, 23675, 28410, 28750, 43125, 43562, 47350, 65343, 71025, 86250, 108905, 118375, 130686, 142050, 217810, 236750, 326715, 355125, 544525, 591875, 653430, 710250, 1089050, 1183750, 1633575, 1775625, 2722625, 3267150, 3551250, 5445250, 8167875, 13613125, 16335750, 27226250, 40839375, 81678750]

約数ペア:

[(1, 81678750), (2, 40839375), (3, 27226250), (5, 16335750), (6, 13613125), (10, 8167875), (15, 5445250), (23, 3551250), (25, 3267150), (30, 2722625), (46, 1775625), (50, 1633575), (69, 1183750), (75, 1089050), (115, 710250), (125, 653430), (138, 591875), (150, 544525), (230, 355125), (250, 326715), (345, 236750), (375, 217810), (575, 142050), (625, 130686), (690, 118375), (750, 108905), (947, 86250), (1150, 71025), (1250, 65343), (1725, 47350), (1875, 43562), (1894, 43125), (2841, 28750), (2875, 28410), (3450, 23675), (3750, 21781), (4735, 17250), (5682, 14375), (5750, 14205), (8625, 9470)]