18219819020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{317087}}^1$

素因数の和:317139

約数の個数: 72

約数和(自身を含む): 43868490624

約数和(自身を除く): 25648671604

約数列:

[1, 2, 4, 5, 10, 13, 17, 20, 26, 34, 52, 65, 68, 85, 130, 169, 170, 221, 260, 338, 340, 442, 676, 845, 884, 1105, 1690, 2210, 2873, 3380, 4420, 5746, 11492, 14365, 28730, 57460, 317087, 634174, 1268348, 1585435, 3170870, 4122131, 5390479, 6341740, 8244262, 10780958, 16488524, 20610655, 21561916, 26952395, 41221310, 53587703, 53904790, 70076227, 82442620, 107175406, 107809580, 140152454, 214350812, 267938515, 280304908, 350381135, 535877030, 700762270, 910990951, 1071754060, 1401524540, 1821981902, 3643963804, 4554954755, 9109909510, 18219819020]

約数ペア:

[(1, 18219819020), (2, 9109909510), (4, 4554954755), (5, 3643963804), (10, 1821981902), (13, 1401524540), (17, 1071754060), (20, 910990951), (26, 700762270), (34, 535877030), (52, 350381135), (65, 280304908), (68, 267938515), (85, 214350812), (130, 140152454), (169, 107809580), (170, 107175406), (221, 82442620), (260, 70076227), (338, 53904790), (340, 53587703), (442, 41221310), (676, 26952395), (845, 21561916), (884, 20610655), (1105, 16488524), (1690, 10780958), (2210, 8244262), (2873, 6341740), (3380, 5390479), (4420, 4122131), (5746, 3170870), (11492, 1585435), (14365, 1268348), (28730, 634174), (57460, 317087)]