61917040

素因数分解:

$2^4\times 5^1\times {\mathrm{79}}^1\times {\mathrm{97}}^1\times {\mathrm{101}}^1$

素因数の和:290

約数の個数: 80

約数和(自身を含む): 148740480

約数和(自身を除く): 86823440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 79, 80, 97, 101, 158, 194, 202, 316, 388, 395, 404, 485, 505, 632, 776, 790, 808, 970, 1010, 1264, 1552, 1580, 1616, 1940, 2020, 3160, 3880, 4040, 6320, 7663, 7760, 7979, 8080, 9797, 15326, 15958, 19594, 30652, 31916, 38315, 39188, 39895, 48985, 61304, 63832, 76630, 78376, 79790, 97970, 122608, 127664, 153260, 156752, 159580, 195940, 306520, 319160, 391880, 613040, 638320, 773963, 783760, 1547926, 3095852, 3869815, 6191704, 7739630, 12383408, 15479260, 30958520, 61917040]

約数ペア:

[(1, 61917040), (2, 30958520), (4, 15479260), (5, 12383408), (8, 7739630), (10, 6191704), (16, 3869815), (20, 3095852), (40, 1547926), (79, 783760), (80, 773963), (97, 638320), (101, 613040), (158, 391880), (194, 319160), (202, 306520), (316, 195940), (388, 159580), (395, 156752), (404, 153260), (485, 127664), (505, 122608), (632, 97970), (776, 79790), (790, 78376), (808, 76630), (970, 63832), (1010, 61304), (1264, 48985), (1552, 39895), (1580, 39188), (1616, 38315), (1940, 31916), (2020, 30652), (3160, 19594), (3880, 15958), (4040, 15326), (6320, 9797), (7663, 8080), (7760, 7979)]