65403320

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{1831}}^1$

素因数の和:1908

約数の個数: 64

約数和(自身を含む): 158284800

約数和(自身を除く): 92881480

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 47, 76, 94, 95, 152, 188, 190, 235, 376, 380, 470, 760, 893, 940, 1786, 1831, 1880, 3572, 3662, 4465, 7144, 7324, 8930, 9155, 14648, 17860, 18310, 34789, 35720, 36620, 69578, 73240, 86057, 139156, 172114, 173945, 278312, 344228, 347890, 430285, 688456, 695780, 860570, 1391560, 1635083, 1721140, 3270166, 3442280, 6540332, 8175415, 13080664, 16350830, 32701660, 65403320]

約数ペア:

[(1, 65403320), (2, 32701660), (4, 16350830), (5, 13080664), (8, 8175415), (10, 6540332), (19, 3442280), (20, 3270166), (38, 1721140), (40, 1635083), (47, 1391560), (76, 860570), (94, 695780), (95, 688456), (152, 430285), (188, 347890), (190, 344228), (235, 278312), (376, 173945), (380, 172114), (470, 139156), (760, 86057), (893, 73240), (940, 69578), (1786, 36620), (1831, 35720), (1880, 34789), (3572, 18310), (3662, 17860), (4465, 14648), (7144, 9155), (7324, 8930)]