65915380

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{97}}^1\times {\mathrm{557}}^1$

素因数の和:724

約数の個数: 48

約数和(自身を含む): 142397136

約数和(自身を除く): 76481756

約数列:

[1, 2, 4, 5, 10, 20, 61, 97, 122, 194, 244, 305, 388, 485, 557, 610, 970, 1114, 1220, 1940, 2228, 2785, 5570, 5917, 11140, 11834, 23668, 29585, 33977, 54029, 59170, 67954, 108058, 118340, 135908, 169885, 216116, 270145, 339770, 540290, 679540, 1080580, 3295769, 6591538, 13183076, 16478845, 32957690, 65915380]

約数ペア:

[(1, 65915380), (2, 32957690), (4, 16478845), (5, 13183076), (10, 6591538), (20, 3295769), (61, 1080580), (97, 679540), (122, 540290), (194, 339770), (244, 270145), (305, 216116), (388, 169885), (485, 135908), (557, 118340), (610, 108058), (970, 67954), (1114, 59170), (1220, 54029), (1940, 33977), (2228, 29585), (2785, 23668), (5570, 11834), (5917, 11140)]