18835180

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{131}}^1$

素因数の和:239

約数の個数: 96

約数和(自身を含む): 49674240

約数和(自身を除く): 30839060

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 79, 91, 130, 131, 140, 158, 182, 260, 262, 316, 364, 395, 455, 524, 553, 655, 790, 910, 917, 1027, 1106, 1310, 1580, 1703, 1820, 1834, 2054, 2212, 2620, 2765, 3406, 3668, 4108, 4585, 5135, 5530, 6812, 7189, 8515, 9170, 10270, 10349, 11060, 11921, 14378, 17030, 18340, 20540, 20698, 23842, 28756, 34060, 35945, 41396, 47684, 51745, 59605, 71890, 72443, 103490, 119210, 134537, 143780, 144886, 206980, 238420, 269074, 289772, 362215, 538148, 672685, 724430, 941759, 1345370, 1448860, 1883518, 2690740, 3767036, 4708795, 9417590, 18835180]

約数ペア:

[(1, 18835180), (2, 9417590), (4, 4708795), (5, 3767036), (7, 2690740), (10, 1883518), (13, 1448860), (14, 1345370), (20, 941759), (26, 724430), (28, 672685), (35, 538148), (52, 362215), (65, 289772), (70, 269074), (79, 238420), (91, 206980), (130, 144886), (131, 143780), (140, 134537), (158, 119210), (182, 103490), (260, 72443), (262, 71890), (316, 59605), (364, 51745), (395, 47684), (455, 41396), (524, 35945), (553, 34060), (655, 28756), (790, 23842), (910, 20698), (917, 20540), (1027, 18340), (1106, 17030), (1310, 14378), (1580, 11921), (1703, 11060), (1820, 10349), (1834, 10270), (2054, 9170), (2212, 8515), (2620, 7189), (2765, 6812), (3406, 5530), (3668, 5135), (4108, 4585)]