25270760

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{811}}^1$

素因数の和:882

約数の個数: 64

約数和(自身を含む): 61387200

約数和(自身を除く): 36116440

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 41, 76, 82, 95, 152, 164, 190, 205, 328, 380, 410, 760, 779, 811, 820, 1558, 1622, 1640, 3116, 3244, 3895, 4055, 6232, 6488, 7790, 8110, 15409, 15580, 16220, 30818, 31160, 32440, 33251, 61636, 66502, 77045, 123272, 133004, 154090, 166255, 266008, 308180, 332510, 616360, 631769, 665020, 1263538, 1330040, 2527076, 3158845, 5054152, 6317690, 12635380, 25270760]

約数ペア:

[(1, 25270760), (2, 12635380), (4, 6317690), (5, 5054152), (8, 3158845), (10, 2527076), (19, 1330040), (20, 1263538), (38, 665020), (40, 631769), (41, 616360), (76, 332510), (82, 308180), (95, 266008), (152, 166255), (164, 154090), (190, 133004), (205, 123272), (328, 77045), (380, 66502), (410, 61636), (760, 33251), (779, 32440), (811, 31160), (820, 30818), (1558, 16220), (1622, 15580), (1640, 15409), (3116, 8110), (3244, 7790), (3895, 6488), (4055, 6232)]