172818280

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{167}}^1\times {\mathrm{631}}^1$

素因数の和:850

約数の個数: 64

約数和(自身を含む): 401345280

約数和(自身を除く): 228527000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 167, 205, 328, 334, 410, 631, 668, 820, 835, 1262, 1336, 1640, 1670, 2524, 3155, 3340, 5048, 6310, 6680, 6847, 12620, 13694, 25240, 25871, 27388, 34235, 51742, 54776, 68470, 103484, 105377, 129355, 136940, 206968, 210754, 258710, 273880, 421508, 517420, 526885, 843016, 1034840, 1053770, 2107540, 4215080, 4320457, 8640914, 17281828, 21602285, 34563656, 43204570, 86409140, 172818280]

約数ペア:

[(1, 172818280), (2, 86409140), (4, 43204570), (5, 34563656), (8, 21602285), (10, 17281828), (20, 8640914), (40, 4320457), (41, 4215080), (82, 2107540), (164, 1053770), (167, 1034840), (205, 843016), (328, 526885), (334, 517420), (410, 421508), (631, 273880), (668, 258710), (820, 210754), (835, 206968), (1262, 136940), (1336, 129355), (1640, 105377), (1670, 103484), (2524, 68470), (3155, 54776), (3340, 51742), (5048, 34235), (6310, 27388), (6680, 25871), (6847, 25240), (12620, 13694)]