18662950

素因数分解:

$2^1\times 5^2\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{211}}^1$

素因数の和:313

約数の個数: 48

約数和(自身を含む): 36671760

約数和(自身を除く): 18008810

約数列:

[1, 2, 5, 10, 25, 29, 50, 58, 61, 122, 145, 211, 290, 305, 422, 610, 725, 1055, 1450, 1525, 1769, 2110, 3050, 3538, 5275, 6119, 8845, 10550, 12238, 12871, 17690, 25742, 30595, 44225, 61190, 64355, 88450, 128710, 152975, 305950, 321775, 373259, 643550, 746518, 1866295, 3732590, 9331475, 18662950]

約数ペア:

[(1, 18662950), (2, 9331475), (5, 3732590), (10, 1866295), (25, 746518), (29, 643550), (50, 373259), (58, 321775), (61, 305950), (122, 152975), (145, 128710), (211, 88450), (290, 64355), (305, 61190), (422, 44225), (610, 30595), (725, 25742), (1055, 17690), (1450, 12871), (1525, 12238), (1769, 10550), (2110, 8845), (3050, 6119), (3538, 5275)]