72882920

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{2333}}^1$

素因数の和:2426

約数の個数: 64

約数和(自身を含む): 181491840

約数和(自身を除く): 108608920

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 71, 88, 110, 142, 220, 284, 355, 440, 568, 710, 781, 1420, 1562, 2333, 2840, 3124, 3905, 4666, 6248, 7810, 9332, 11665, 15620, 18664, 23330, 25663, 31240, 46660, 51326, 93320, 102652, 128315, 165643, 205304, 256630, 331286, 513260, 662572, 828215, 1026520, 1325144, 1656430, 1822073, 3312860, 3644146, 6625720, 7288292, 9110365, 14576584, 18220730, 36441460, 72882920]

約数ペア:

[(1, 72882920), (2, 36441460), (4, 18220730), (5, 14576584), (8, 9110365), (10, 7288292), (11, 6625720), (20, 3644146), (22, 3312860), (40, 1822073), (44, 1656430), (55, 1325144), (71, 1026520), (88, 828215), (110, 662572), (142, 513260), (220, 331286), (284, 256630), (355, 205304), (440, 165643), (568, 128315), (710, 102652), (781, 93320), (1420, 51326), (1562, 46660), (2333, 31240), (2840, 25663), (3124, 23330), (3905, 18664), (4666, 15620), (6248, 11665), (7810, 9332)]