161376520

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{163}}^1\times {\mathrm{467}}^1$

素因数の和:694

約数の個数: 64

約数和(自身を含む): 373014720

約数和(自身を除く): 211638200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 106, 163, 212, 265, 326, 424, 467, 530, 652, 815, 934, 1060, 1304, 1630, 1868, 2120, 2335, 3260, 3736, 4670, 6520, 8639, 9340, 17278, 18680, 24751, 34556, 43195, 49502, 69112, 76121, 86390, 99004, 123755, 152242, 172780, 198008, 247510, 304484, 345560, 380605, 495020, 608968, 761210, 990040, 1522420, 3044840, 4034413, 8068826, 16137652, 20172065, 32275304, 40344130, 80688260, 161376520]

約数ペア:

[(1, 161376520), (2, 80688260), (4, 40344130), (5, 32275304), (8, 20172065), (10, 16137652), (20, 8068826), (40, 4034413), (53, 3044840), (106, 1522420), (163, 990040), (212, 761210), (265, 608968), (326, 495020), (424, 380605), (467, 345560), (530, 304484), (652, 247510), (815, 198008), (934, 172780), (1060, 152242), (1304, 123755), (1630, 99004), (1868, 86390), (2120, 76121), (2335, 69112), (3260, 49502), (3736, 43195), (4670, 34556), (6520, 24751), (8639, 18680), (9340, 17278)]