18161780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{587}}^1$

素因数の和:633

約数の個数: 96

約数和(自身を含む): 49787136

約数和(自身を除く): 31625356

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 17, 20, 26, 28, 34, 35, 52, 65, 68, 70, 85, 91, 119, 130, 140, 170, 182, 221, 238, 260, 340, 364, 442, 455, 476, 587, 595, 884, 910, 1105, 1174, 1190, 1547, 1820, 2210, 2348, 2380, 2935, 3094, 4109, 4420, 5870, 6188, 7631, 7735, 8218, 9979, 11740, 15262, 15470, 16436, 19958, 20545, 30524, 30940, 38155, 39916, 41090, 49895, 53417, 69853, 76310, 82180, 99790, 106834, 129727, 139706, 152620, 199580, 213668, 259454, 267085, 279412, 349265, 518908, 534170, 648635, 698530, 908089, 1068340, 1297270, 1397060, 1816178, 2594540, 3632356, 4540445, 9080890, 18161780]

約数ペア:

[(1, 18161780), (2, 9080890), (4, 4540445), (5, 3632356), (7, 2594540), (10, 1816178), (13, 1397060), (14, 1297270), (17, 1068340), (20, 908089), (26, 698530), (28, 648635), (34, 534170), (35, 518908), (52, 349265), (65, 279412), (68, 267085), (70, 259454), (85, 213668), (91, 199580), (119, 152620), (130, 139706), (140, 129727), (170, 106834), (182, 99790), (221, 82180), (238, 76310), (260, 69853), (340, 53417), (364, 49895), (442, 41090), (455, 39916), (476, 38155), (587, 30940), (595, 30524), (884, 20545), (910, 19958), (1105, 16436), (1174, 15470), (1190, 15262), (1547, 11740), (1820, 9979), (2210, 8218), (2348, 7735), (2380, 7631), (2935, 6188), (3094, 5870), (4109, 4420)]