1899983820

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{646253}}^1$

素因数の和:646279

約数の個数: 72

約数和(自身を含む): 6188528304

約数和(自身を除く): 4288544484

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, 646253, 1292506, 1938759, 2585012, 3231265, 3877518, 4523771, 6462530, 7755036, 9047542, 9693795, 12925060, 13571313, 18095084, 19387590, 22618855, 27142626, 31666397, 38775180, 45237710, 54285252, 63332794, 67856565, 90475420, 94999191, 126665588, 135713130, 158331985, 189998382, 271426260, 316663970, 379996764, 474995955, 633327940, 949991910, 1899983820]

約数ペア:

[(1, 1899983820), (2, 949991910), (3, 633327940), (4, 474995955), (5, 379996764), (6, 316663970), (7, 271426260), (10, 189998382), (12, 158331985), (14, 135713130), (15, 126665588), (20, 94999191), (21, 90475420), (28, 67856565), (30, 63332794), (35, 54285252), (42, 45237710), (49, 38775180), (60, 31666397), (70, 27142626), (84, 22618855), (98, 19387590), (105, 18095084), (140, 13571313), (147, 12925060), (196, 9693795), (210, 9047542), (245, 7755036), (294, 6462530), (420, 4523771), (490, 3877518), (588, 3231265), (735, 2585012), (980, 1938759), (1470, 1292506), (2940, 646253)]