208102020

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{70783}}^1$

素因数の和:70809

約数の個数: 72

約数和(自身を含む): 677827584

約数和(自身を除く): 469725564

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 420, 490, 588, 735, 980, 1470, 2940, 70783, 141566, 212349, 283132, 353915, 424698, 495481, 707830, 849396, 990962, 1061745, 1415660, 1486443, 1981924, 2123490, 2477405, 2972886, 3468367, 4246980, 4954810, 5945772, 6936734, 7432215, 9909620, 10405101, 13873468, 14864430, 17341835, 20810202, 29728860, 34683670, 41620404, 52025505, 69367340, 104051010, 208102020]

約数ペア:

[(1, 208102020), (2, 104051010), (3, 69367340), (4, 52025505), (5, 41620404), (6, 34683670), (7, 29728860), (10, 20810202), (12, 17341835), (14, 14864430), (15, 13873468), (20, 10405101), (21, 9909620), (28, 7432215), (30, 6936734), (35, 5945772), (42, 4954810), (49, 4246980), (60, 3468367), (70, 2972886), (84, 2477405), (98, 2123490), (105, 1981924), (140, 1486443), (147, 1415660), (196, 1061745), (210, 990962), (245, 849396), (294, 707830), (420, 495481), (490, 424698), (588, 353915), (735, 283132), (980, 212349), (1470, 141566), (2940, 70783)]