16729720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{149}}^1\times {\mathrm{401}}^1$

素因数の和:568

約数の個数: 64

約数和(自身を含む): 43416000

約数和(自身を除く): 26686280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 149, 280, 298, 401, 596, 745, 802, 1043, 1192, 1490, 1604, 2005, 2086, 2807, 2980, 3208, 4010, 4172, 5215, 5614, 5960, 8020, 8344, 10430, 11228, 14035, 16040, 20860, 22456, 28070, 41720, 56140, 59749, 112280, 119498, 238996, 298745, 418243, 477992, 597490, 836486, 1194980, 1672972, 2091215, 2389960, 3345944, 4182430, 8364860, 16729720]

約数ペア:

[(1, 16729720), (2, 8364860), (4, 4182430), (5, 3345944), (7, 2389960), (8, 2091215), (10, 1672972), (14, 1194980), (20, 836486), (28, 597490), (35, 477992), (40, 418243), (56, 298745), (70, 238996), (140, 119498), (149, 112280), (280, 59749), (298, 56140), (401, 41720), (596, 28070), (745, 22456), (802, 20860), (1043, 16040), (1192, 14035), (1490, 11228), (1604, 10430), (2005, 8344), (2086, 8020), (2807, 5960), (2980, 5614), (3208, 5215), (4010, 4172)]