87981460

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{5281}}^1$

素因数の和:5321

約数の個数: 72

約数和(自身を含む): 227611944

約数和(自身を除く): 139630484

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 28, 34, 35, 49, 68, 70, 85, 98, 119, 140, 170, 196, 238, 245, 340, 476, 490, 595, 833, 980, 1190, 1666, 2380, 3332, 4165, 5281, 8330, 10562, 16660, 21124, 26405, 36967, 52810, 73934, 89777, 105620, 147868, 179554, 184835, 258769, 359108, 369670, 448885, 517538, 628439, 739340, 897770, 1035076, 1256878, 1293845, 1795540, 2513756, 2587690, 3142195, 4399073, 5175380, 6284390, 8798146, 12568780, 17596292, 21995365, 43990730, 87981460]

約数ペア:

[(1, 87981460), (2, 43990730), (4, 21995365), (5, 17596292), (7, 12568780), (10, 8798146), (14, 6284390), (17, 5175380), (20, 4399073), (28, 3142195), (34, 2587690), (35, 2513756), (49, 1795540), (68, 1293845), (70, 1256878), (85, 1035076), (98, 897770), (119, 739340), (140, 628439), (170, 517538), (196, 448885), (238, 369670), (245, 359108), (340, 258769), (476, 184835), (490, 179554), (595, 147868), (833, 105620), (980, 89777), (1190, 73934), (1666, 52810), (2380, 36967), (3332, 26405), (4165, 21124), (5281, 16660), (8330, 10562)]