18915663645

素因数分解:

$3^3\times 5^1\times {\mathrm{211}}^1\times {\mathrm{443}}^1\times {\mathrm{1499}}^1$

素因数の和:2167

約数の個数: 64

約数和(自身を含む): 33886080000

約数和(自身を除く): 14970416355

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 211, 443, 633, 1055, 1329, 1499, 1899, 2215, 3165, 3987, 4497, 5697, 6645, 7495, 9495, 11961, 13491, 19935, 22485, 28485, 40473, 59805, 67455, 93473, 202365, 280419, 316289, 467365, 664057, 841257, 948867, 1402095, 1581445, 1992171, 2523771, 2846601, 3320285, 4206285, 4744335, 5976513, 8539803, 9960855, 12618855, 14233005, 17929539, 29882565, 42699015, 89647695, 140116027, 420348081, 700580135, 1261044243, 2101740405, 3783132729, 6305221215, 18915663645]

約数ペア:

[(1, 18915663645), (3, 6305221215), (5, 3783132729), (9, 2101740405), (15, 1261044243), (27, 700580135), (45, 420348081), (135, 140116027), (211, 89647695), (443, 42699015), (633, 29882565), (1055, 17929539), (1329, 14233005), (1499, 12618855), (1899, 9960855), (2215, 8539803), (3165, 5976513), (3987, 4744335), (4497, 4206285), (5697, 3320285), (6645, 2846601), (7495, 2523771), (9495, 1992171), (11961, 1581445), (13491, 1402095), (19935, 948867), (22485, 841257), (28485, 664057), (40473, 467365), (59805, 316289), (67455, 280419), (93473, 202365)]