2018214940

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{73}}^1\times {\mathrm{28211}}^1$

素因数の和:28307

約数の個数: 72

約数和(自身を含む): 4997925072

約数和(自身を除く): 2979710132

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 73, 98, 140, 146, 196, 245, 292, 365, 490, 511, 730, 980, 1022, 1460, 2044, 2555, 3577, 5110, 7154, 10220, 14308, 17885, 28211, 35770, 56422, 71540, 112844, 141055, 197477, 282110, 394954, 564220, 789908, 987385, 1382339, 1974770, 2059403, 2764678, 3949540, 4118806, 5529356, 6911695, 8237612, 10297015, 13823390, 14415821, 20594030, 27646780, 28831642, 41188060, 57663284, 72079105, 100910747, 144158210, 201821494, 288316420, 403642988, 504553735, 1009107470, 2018214940]

約数ペア:

[(1, 2018214940), (2, 1009107470), (4, 504553735), (5, 403642988), (7, 288316420), (10, 201821494), (14, 144158210), (20, 100910747), (28, 72079105), (35, 57663284), (49, 41188060), (70, 28831642), (73, 27646780), (98, 20594030), (140, 14415821), (146, 13823390), (196, 10297015), (245, 8237612), (292, 6911695), (365, 5529356), (490, 4118806), (511, 3949540), (730, 2764678), (980, 2059403), (1022, 1974770), (1460, 1382339), (2044, 987385), (2555, 789908), (3577, 564220), (5110, 394954), (7154, 282110), (10220, 197477), (14308, 141055), (17885, 112844), (28211, 71540), (35770, 56422)]