13681640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{131}}^1\times {\mathrm{373}}^1$

素因数の和:522

約数の個数: 64

約数和(自身を含む): 35544960

約数和(自身を除く): 21863320

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 131, 140, 262, 280, 373, 524, 655, 746, 917, 1048, 1310, 1492, 1834, 1865, 2611, 2620, 2984, 3668, 3730, 4585, 5222, 5240, 7336, 7460, 9170, 10444, 13055, 14920, 18340, 20888, 26110, 36680, 48863, 52220, 97726, 104440, 195452, 244315, 342041, 390904, 488630, 684082, 977260, 1368164, 1710205, 1954520, 2736328, 3420410, 6840820, 13681640]

約数ペア:

[(1, 13681640), (2, 6840820), (4, 3420410), (5, 2736328), (7, 1954520), (8, 1710205), (10, 1368164), (14, 977260), (20, 684082), (28, 488630), (35, 390904), (40, 342041), (56, 244315), (70, 195452), (131, 104440), (140, 97726), (262, 52220), (280, 48863), (373, 36680), (524, 26110), (655, 20888), (746, 18340), (917, 14920), (1048, 13055), (1310, 10444), (1492, 9170), (1834, 7460), (1865, 7336), (2611, 5240), (2620, 5222), (2984, 4585), (3668, 3730)]