16972360

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{79}}^1\times {\mathrm{131}}^1$

素因数の和:262

約数の個数: 64

約数和(自身を含む): 39916800

約数和(自身を除く): 22944440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 79, 82, 131, 158, 164, 205, 262, 316, 328, 395, 410, 524, 632, 655, 790, 820, 1048, 1310, 1580, 1640, 2620, 3160, 3239, 5240, 5371, 6478, 10349, 10742, 12956, 16195, 20698, 21484, 25912, 26855, 32390, 41396, 42968, 51745, 53710, 64780, 82792, 103490, 107420, 129560, 206980, 214840, 413960, 424309, 848618, 1697236, 2121545, 3394472, 4243090, 8486180, 16972360]

約数ペア:

[(1, 16972360), (2, 8486180), (4, 4243090), (5, 3394472), (8, 2121545), (10, 1697236), (20, 848618), (40, 424309), (41, 413960), (79, 214840), (82, 206980), (131, 129560), (158, 107420), (164, 103490), (205, 82792), (262, 64780), (316, 53710), (328, 51745), (395, 42968), (410, 41396), (524, 32390), (632, 26855), (655, 25912), (790, 21484), (820, 20698), (1048, 16195), (1310, 12956), (1580, 10742), (1640, 10349), (2620, 6478), (3160, 5371), (3239, 5240)]