13668520

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{151}}^1$

素因数の和:266

約数の個数: 64

約数和(自身を含む): 32394240

約数和(自身を除く): 18725720

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 73, 124, 146, 151, 155, 248, 292, 302, 310, 365, 584, 604, 620, 730, 755, 1208, 1240, 1460, 1510, 2263, 2920, 3020, 4526, 4681, 6040, 9052, 9362, 11023, 11315, 18104, 18724, 22046, 22630, 23405, 37448, 44092, 45260, 46810, 55115, 88184, 90520, 93620, 110230, 187240, 220460, 341713, 440920, 683426, 1366852, 1708565, 2733704, 3417130, 6834260, 13668520]

約数ペア:

[(1, 13668520), (2, 6834260), (4, 3417130), (5, 2733704), (8, 1708565), (10, 1366852), (20, 683426), (31, 440920), (40, 341713), (62, 220460), (73, 187240), (124, 110230), (146, 93620), (151, 90520), (155, 88184), (248, 55115), (292, 46810), (302, 45260), (310, 44092), (365, 37448), (584, 23405), (604, 22630), (620, 22046), (730, 18724), (755, 18104), (1208, 11315), (1240, 11023), (1460, 9362), (1510, 9052), (2263, 6040), (2920, 4681), (3020, 4526)]