20125878250

素因数分解:

$2^1\times 5^3\times {\mathrm{19}}^1\times {\mathrm{1889}}^1\times {\mathrm{2243}}^1$

素因数の和:4168

約数の個数: 64

約数和(自身を含む): 39697257600

約数和(自身を除く): 19571379350

約数列:

[1, 2, 5, 10, 19, 25, 38, 50, 95, 125, 190, 250, 475, 950, 1889, 2243, 2375, 3778, 4486, 4750, 9445, 11215, 18890, 22430, 35891, 42617, 47225, 56075, 71782, 85234, 94450, 112150, 179455, 213085, 236125, 280375, 358910, 426170, 472250, 560750, 897275, 1065425, 1794550, 2130850, 4237027, 4486375, 5327125, 8474054, 8972750, 10654250, 21185135, 42370270, 80503513, 105925675, 161007026, 211851350, 402517565, 529628375, 805035130, 1059256750, 2012587825, 4025175650, 10062939125, 20125878250]

約数ペア:

[(1, 20125878250), (2, 10062939125), (5, 4025175650), (10, 2012587825), (19, 1059256750), (25, 805035130), (38, 529628375), (50, 402517565), (95, 211851350), (125, 161007026), (190, 105925675), (250, 80503513), (475, 42370270), (950, 21185135), (1889, 10654250), (2243, 8972750), (2375, 8474054), (3778, 5327125), (4486, 4486375), (4750, 4237027), (9445, 2130850), (11215, 1794550), (18890, 1065425), (22430, 897275), (35891, 560750), (42617, 472250), (47225, 426170), (56075, 358910), (71782, 280375), (85234, 236125), (94450, 213085), (112150, 179455)]