20013240

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{12829}}^1$

素因数の和:12856

約数の個数: 64

約数和(自身を含む): 64663200

約数和(自身を除く): 44649960

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 104, 120, 130, 156, 195, 260, 312, 390, 520, 780, 1560, 12829, 25658, 38487, 51316, 64145, 76974, 102632, 128290, 153948, 166777, 192435, 256580, 307896, 333554, 384870, 500331, 513160, 667108, 769740, 833885, 1000662, 1334216, 1539480, 1667770, 2001324, 2501655, 3335540, 4002648, 5003310, 6671080, 10006620, 20013240]

約数ペア:

[(1, 20013240), (2, 10006620), (3, 6671080), (4, 5003310), (5, 4002648), (6, 3335540), (8, 2501655), (10, 2001324), (12, 1667770), (13, 1539480), (15, 1334216), (20, 1000662), (24, 833885), (26, 769740), (30, 667108), (39, 513160), (40, 500331), (52, 384870), (60, 333554), (65, 307896), (78, 256580), (104, 192435), (120, 166777), (130, 153948), (156, 128290), (195, 102632), (260, 76974), (312, 64145), (390, 51316), (520, 38487), (780, 25658), (1560, 12829)]