128975500

素因数分解:

$2^2\times 5^3\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{157}}^1$

素因数の和:260

約数の個数: 96

約数和(自身を含む): 298142208

約数和(自身を除く): 169166708

約数列:

[1, 2, 4, 5, 10, 20, 25, 31, 50, 53, 62, 100, 106, 124, 125, 155, 157, 212, 250, 265, 310, 314, 500, 530, 620, 628, 775, 785, 1060, 1325, 1550, 1570, 1643, 2650, 3100, 3140, 3286, 3875, 3925, 4867, 5300, 6572, 6625, 7750, 7850, 8215, 8321, 9734, 13250, 15500, 15700, 16430, 16642, 19468, 19625, 24335, 26500, 32860, 33284, 39250, 41075, 41605, 48670, 78500, 82150, 83210, 97340, 121675, 164300, 166420, 205375, 208025, 243350, 257951, 410750, 416050, 486700, 515902, 608375, 821500, 832100, 1031804, 1040125, 1216750, 1289755, 2080250, 2433500, 2579510, 4160500, 5159020, 6448775, 12897550, 25795100, 32243875, 64487750, 128975500]

約数ペア:

[(1, 128975500), (2, 64487750), (4, 32243875), (5, 25795100), (10, 12897550), (20, 6448775), (25, 5159020), (31, 4160500), (50, 2579510), (53, 2433500), (62, 2080250), (100, 1289755), (106, 1216750), (124, 1040125), (125, 1031804), (155, 832100), (157, 821500), (212, 608375), (250, 515902), (265, 486700), (310, 416050), (314, 410750), (500, 257951), (530, 243350), (620, 208025), (628, 205375), (775, 166420), (785, 164300), (1060, 121675), (1325, 97340), (1550, 83210), (1570, 82150), (1643, 78500), (2650, 48670), (3100, 41605), (3140, 41075), (3286, 39250), (3875, 33284), (3925, 32860), (4867, 26500), (5300, 24335), (6572, 19625), (6625, 19468), (7750, 16642), (7850, 16430), (8215, 15700), (8321, 15500), (9734, 13250)]