31476760

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{1423}}^1$

素因数の和:1520

約数の個数: 64

約数和(自身を含む): 82022400

約数和(自身を除く): 50545640

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 79, 140, 158, 280, 316, 395, 553, 632, 790, 1106, 1423, 1580, 2212, 2765, 2846, 3160, 4424, 5530, 5692, 7115, 9961, 11060, 11384, 14230, 19922, 22120, 28460, 39844, 49805, 56920, 79688, 99610, 112417, 199220, 224834, 398440, 449668, 562085, 786919, 899336, 1124170, 1573838, 2248340, 3147676, 3934595, 4496680, 6295352, 7869190, 15738380, 31476760]

約数ペア:

[(1, 31476760), (2, 15738380), (4, 7869190), (5, 6295352), (7, 4496680), (8, 3934595), (10, 3147676), (14, 2248340), (20, 1573838), (28, 1124170), (35, 899336), (40, 786919), (56, 562085), (70, 449668), (79, 398440), (140, 224834), (158, 199220), (280, 112417), (316, 99610), (395, 79688), (553, 56920), (632, 49805), (790, 39844), (1106, 28460), (1423, 22120), (1580, 19922), (2212, 14230), (2765, 11384), (2846, 11060), (3160, 9961), (4424, 7115), (5530, 5692)]