1621007900

素因数分解:

$2^2\times 5^2\times {\mathrm{61}}^1\times {\mathrm{265739}}^1$

素因数の和:265814

約数の個数: 36

約数和(自身を含む): 3575265960

約数和(自身を除く): 1954258060

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 61, 100, 122, 244, 305, 610, 1220, 1525, 3050, 6100, 265739, 531478, 1062956, 1328695, 2657390, 5314780, 6643475, 13286950, 16210079, 26573900, 32420158, 64840316, 81050395, 162100790, 324201580, 405251975, 810503950, 1621007900]

約数ペア:

[(1, 1621007900), (2, 810503950), (4, 405251975), (5, 324201580), (10, 162100790), (20, 81050395), (25, 64840316), (50, 32420158), (61, 26573900), (100, 16210079), (122, 13286950), (244, 6643475), (305, 5314780), (610, 2657390), (1220, 1328695), (1525, 1062956), (3050, 531478), (6100, 265739)]