8387500

素因数分解:

$2^2\times 5^5\times {\mathrm{11}}^1\times {\mathrm{61}}^1$

素因数の和:101

約数の個数: 72

約数和(自身を含む): 20342448

約数和(自身を除く): 11954948

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 61, 100, 110, 122, 125, 220, 244, 250, 275, 305, 500, 550, 610, 625, 671, 1100, 1220, 1250, 1342, 1375, 1525, 2500, 2684, 2750, 3050, 3125, 3355, 5500, 6100, 6250, 6710, 6875, 7625, 12500, 13420, 13750, 15250, 16775, 27500, 30500, 33550, 34375, 38125, 67100, 68750, 76250, 83875, 137500, 152500, 167750, 190625, 335500, 381250, 419375, 762500, 838750, 1677500, 2096875, 4193750, 8387500]

約数ペア:

[(1, 8387500), (2, 4193750), (4, 2096875), (5, 1677500), (10, 838750), (11, 762500), (20, 419375), (22, 381250), (25, 335500), (44, 190625), (50, 167750), (55, 152500), (61, 137500), (100, 83875), (110, 76250), (122, 68750), (125, 67100), (220, 38125), (244, 34375), (250, 33550), (275, 30500), (305, 27500), (500, 16775), (550, 15250), (610, 13750), (625, 13420), (671, 12500), (1100, 7625), (1220, 6875), (1250, 6710), (1342, 6250), (1375, 6100), (1525, 5500), (2500, 3355), (2684, 3125), (2750, 3050)]