217237980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{113}}^1\times {\mathrm{179}}^2$

素因数の和:483

約数の個数: 72

約数和(自身を含む): 617096592

約数和(自身を除く): 399858612

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 113, 179, 226, 339, 358, 452, 537, 565, 678, 716, 895, 1074, 1130, 1356, 1695, 1790, 2148, 2260, 2685, 3390, 3580, 5370, 6780, 10740, 20227, 32041, 40454, 60681, 64082, 80908, 96123, 101135, 121362, 128164, 160205, 192246, 202270, 242724, 303405, 320410, 384492, 404540, 480615, 606810, 640820, 961230, 1213620, 1922460, 3620633, 7241266, 10861899, 14482532, 18103165, 21723798, 36206330, 43447596, 54309495, 72412660, 108618990, 217237980]

約数ペア:

[(1, 217237980), (2, 108618990), (3, 72412660), (4, 54309495), (5, 43447596), (6, 36206330), (10, 21723798), (12, 18103165), (15, 14482532), (20, 10861899), (30, 7241266), (60, 3620633), (113, 1922460), (179, 1213620), (226, 961230), (339, 640820), (358, 606810), (452, 480615), (537, 404540), (565, 384492), (678, 320410), (716, 303405), (895, 242724), (1074, 202270), (1130, 192246), (1356, 160205), (1695, 128164), (1790, 121362), (2148, 101135), (2260, 96123), (2685, 80908), (3390, 64082), (3580, 60681), (5370, 40454), (6780, 32041), (10740, 20227)]