72388120

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{263}}^1\times {\mathrm{983}}^1$

素因数の和:1264

約数の個数: 64

約数和(自身を含む): 187038720

約数和(自身を除く): 114650600

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 263, 280, 526, 983, 1052, 1315, 1841, 1966, 2104, 2630, 3682, 3932, 4915, 5260, 6881, 7364, 7864, 9205, 9830, 10520, 13762, 14728, 18410, 19660, 27524, 34405, 36820, 39320, 55048, 68810, 73640, 137620, 258529, 275240, 517058, 1034116, 1292645, 1809703, 2068232, 2585290, 3619406, 5170580, 7238812, 9048515, 10341160, 14477624, 18097030, 36194060, 72388120]

約数ペア:

[(1, 72388120), (2, 36194060), (4, 18097030), (5, 14477624), (7, 10341160), (8, 9048515), (10, 7238812), (14, 5170580), (20, 3619406), (28, 2585290), (35, 2068232), (40, 1809703), (56, 1292645), (70, 1034116), (140, 517058), (263, 275240), (280, 258529), (526, 137620), (983, 73640), (1052, 68810), (1315, 55048), (1841, 39320), (1966, 36820), (2104, 34405), (2630, 27524), (3682, 19660), (3932, 18410), (4915, 14728), (5260, 13762), (6881, 10520), (7364, 9830), (7864, 9205)]