320791640

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{467}}^1\times {\mathrm{1321}}^1$

素因数の和:1812

約数の個数: 64

約数和(自身を含む): 779556960

約数和(自身を除く): 458765320

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 467, 520, 934, 1321, 1868, 2335, 2642, 3736, 4670, 5284, 6071, 6605, 9340, 10568, 12142, 13210, 17173, 18680, 24284, 26420, 30355, 34346, 48568, 52840, 60710, 68692, 85865, 121420, 137384, 171730, 242840, 343460, 616907, 686920, 1233814, 2467628, 3084535, 4935256, 6169070, 8019791, 12338140, 16039582, 24676280, 32079164, 40098955, 64158328, 80197910, 160395820, 320791640]

約数ペア:

[(1, 320791640), (2, 160395820), (4, 80197910), (5, 64158328), (8, 40098955), (10, 32079164), (13, 24676280), (20, 16039582), (26, 12338140), (40, 8019791), (52, 6169070), (65, 4935256), (104, 3084535), (130, 2467628), (260, 1233814), (467, 686920), (520, 616907), (934, 343460), (1321, 242840), (1868, 171730), (2335, 137384), (2642, 121420), (3736, 85865), (4670, 68692), (5284, 60710), (6071, 52840), (6605, 48568), (9340, 34346), (10568, 30355), (12142, 26420), (13210, 24284), (17173, 18680)]