90204920

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{4231}}^1$

素因数の和:4296

約数の個数: 64

約数和(自身を含む): 223957440

約数和(自身を除く): 133752520

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 41, 52, 65, 82, 104, 130, 164, 205, 260, 328, 410, 520, 533, 820, 1066, 1640, 2132, 2665, 4231, 4264, 5330, 8462, 10660, 16924, 21155, 21320, 33848, 42310, 55003, 84620, 110006, 169240, 173471, 220012, 275015, 346942, 440024, 550030, 693884, 867355, 1100060, 1387768, 1734710, 2200120, 2255123, 3469420, 4510246, 6938840, 9020492, 11275615, 18040984, 22551230, 45102460, 90204920]

約数ペア:

[(1, 90204920), (2, 45102460), (4, 22551230), (5, 18040984), (8, 11275615), (10, 9020492), (13, 6938840), (20, 4510246), (26, 3469420), (40, 2255123), (41, 2200120), (52, 1734710), (65, 1387768), (82, 1100060), (104, 867355), (130, 693884), (164, 550030), (205, 440024), (260, 346942), (328, 275015), (410, 220012), (520, 173471), (533, 169240), (820, 110006), (1066, 84620), (1640, 55003), (2132, 42310), (2665, 33848), (4231, 21320), (4264, 21155), (5330, 16924), (8462, 10660)]