66981400

素因数分解:

$2^3\times 5^2\times {\mathrm{53}}^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1$

素因数の和:229

約数の個数: 96

約数和(自身を含む): 162712800

約数和(自身を除く): 95731400

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 53, 71, 89, 100, 106, 142, 178, 200, 212, 265, 284, 355, 356, 424, 445, 530, 568, 710, 712, 890, 1060, 1325, 1420, 1775, 1780, 2120, 2225, 2650, 2840, 3550, 3560, 3763, 4450, 4717, 5300, 6319, 7100, 7526, 8900, 9434, 10600, 12638, 14200, 15052, 17800, 18815, 18868, 23585, 25276, 30104, 31595, 37630, 37736, 47170, 50552, 63190, 75260, 94075, 94340, 117925, 126380, 150520, 157975, 188150, 188680, 235850, 252760, 315950, 334907, 376300, 471700, 631900, 669814, 752600, 943400, 1263800, 1339628, 1674535, 2679256, 3349070, 6698140, 8372675, 13396280, 16745350, 33490700, 66981400]

約数ペア:

[(1, 66981400), (2, 33490700), (4, 16745350), (5, 13396280), (8, 8372675), (10, 6698140), (20, 3349070), (25, 2679256), (40, 1674535), (50, 1339628), (53, 1263800), (71, 943400), (89, 752600), (100, 669814), (106, 631900), (142, 471700), (178, 376300), (200, 334907), (212, 315950), (265, 252760), (284, 235850), (355, 188680), (356, 188150), (424, 157975), (445, 150520), (530, 126380), (568, 117925), (710, 94340), (712, 94075), (890, 75260), (1060, 63190), (1325, 50552), (1420, 47170), (1775, 37736), (1780, 37630), (2120, 31595), (2225, 30104), (2650, 25276), (2840, 23585), (3550, 18868), (3560, 18815), (3763, 17800), (4450, 15052), (4717, 14200), (5300, 12638), (6319, 10600), (7100, 9434), (7526, 8900)]