8179640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{131}}^1\times {\mathrm{223}}^1$

素因数の和:372

約数の個数: 64

約数和(自身を含む): 21288960

約数和(自身を除く): 13109320

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 131, 140, 223, 262, 280, 446, 524, 655, 892, 917, 1048, 1115, 1310, 1561, 1784, 1834, 2230, 2620, 3122, 3668, 4460, 4585, 5240, 6244, 7336, 7805, 8920, 9170, 12488, 15610, 18340, 29213, 31220, 36680, 58426, 62440, 116852, 146065, 204491, 233704, 292130, 408982, 584260, 817964, 1022455, 1168520, 1635928, 2044910, 4089820, 8179640]

約数ペア:

[(1, 8179640), (2, 4089820), (4, 2044910), (5, 1635928), (7, 1168520), (8, 1022455), (10, 817964), (14, 584260), (20, 408982), (28, 292130), (35, 233704), (40, 204491), (56, 146065), (70, 116852), (131, 62440), (140, 58426), (223, 36680), (262, 31220), (280, 29213), (446, 18340), (524, 15610), (655, 12488), (892, 9170), (917, 8920), (1048, 7805), (1115, 7336), (1310, 6244), (1561, 5240), (1784, 4585), (1834, 4460), (2230, 3668), (2620, 3122)]