263786875

素因数分解:

$5^4\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1$

素因数の和:146

約数の個数: 80

約数和(自身を含む): 397447776

約数和(自身を除く): 133660901

約数列:

[1, 5, 11, 17, 25, 37, 55, 61, 85, 125, 185, 187, 275, 305, 407, 425, 625, 629, 671, 925, 935, 1037, 1375, 1525, 2035, 2125, 2257, 3145, 3355, 4625, 4675, 5185, 6875, 6919, 7625, 10175, 10625, 11285, 11407, 15725, 16775, 23125, 23375, 24827, 25925, 34595, 38125, 38369, 50875, 56425, 57035, 78625, 83875, 116875, 124135, 129625, 172975, 191845, 254375, 282125, 285175, 393125, 419375, 422059, 620675, 648125, 864875, 959225, 1410625, 1425875, 2110295, 3103375, 4324375, 4796125, 7129375, 10551475, 15516875, 23980625, 52757375, 263786875]

約数ペア:

[(1, 263786875), (5, 52757375), (11, 23980625), (17, 15516875), (25, 10551475), (37, 7129375), (55, 4796125), (61, 4324375), (85, 3103375), (125, 2110295), (185, 1425875), (187, 1410625), (275, 959225), (305, 864875), (407, 648125), (425, 620675), (625, 422059), (629, 419375), (671, 393125), (925, 285175), (935, 282125), (1037, 254375), (1375, 191845), (1525, 172975), (2035, 129625), (2125, 124135), (2257, 116875), (3145, 83875), (3355, 78625), (4625, 57035), (4675, 56425), (5185, 50875), (6875, 38369), (6919, 38125), (7625, 34595), (10175, 25925), (10625, 24827), (11285, 23375), (11407, 23125), (15725, 16775)]