64815550

素因数分解:

$2^1\times 5^2\times {\mathrm{61}}^1\times {\mathrm{79}}^1\times {\mathrm{269}}^1$

素因数の和:421

約数の個数: 48

約数和(自身を含む): 124545600

約数和(自身を除く): 59730050

約数列:

[1, 2, 5, 10, 25, 50, 61, 79, 122, 158, 269, 305, 395, 538, 610, 790, 1345, 1525, 1975, 2690, 3050, 3950, 4819, 6725, 9638, 13450, 16409, 21251, 24095, 32818, 42502, 48190, 82045, 106255, 120475, 164090, 212510, 240950, 410225, 531275, 820450, 1062550, 1296311, 2592622, 6481555, 12963110, 32407775, 64815550]

約数ペア:

[(1, 64815550), (2, 32407775), (5, 12963110), (10, 6481555), (25, 2592622), (50, 1296311), (61, 1062550), (79, 820450), (122, 531275), (158, 410225), (269, 240950), (305, 212510), (395, 164090), (538, 120475), (610, 106255), (790, 82045), (1345, 48190), (1525, 42502), (1975, 32818), (2690, 24095), (3050, 21251), (3950, 16409), (4819, 13450), (6725, 9638)]