31688820

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{631}}^1$

素因数の和:683

約数の個数: 120

約数和(自身を含む): 102778368

約数和(自身を除く): 71089548

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 31, 36, 45, 54, 60, 62, 81, 90, 93, 108, 124, 135, 155, 162, 180, 186, 270, 279, 310, 324, 372, 405, 465, 540, 558, 620, 631, 810, 837, 930, 1116, 1262, 1395, 1620, 1674, 1860, 1893, 2511, 2524, 2790, 3155, 3348, 3786, 4185, 5022, 5580, 5679, 6310, 7572, 8370, 9465, 10044, 11358, 12555, 12620, 16740, 17037, 18930, 19561, 22716, 25110, 28395, 34074, 37860, 39122, 50220, 51111, 56790, 58683, 68148, 78244, 85185, 97805, 102222, 113580, 117366, 170370, 176049, 195610, 204444, 234732, 255555, 293415, 340740, 352098, 391220, 511110, 528147, 586830, 704196, 880245, 1022220, 1056294, 1173660, 1584441, 1760490, 2112588, 2640735, 3168882, 3520980, 5281470, 6337764, 7922205, 10562940, 15844410, 31688820]

約数ペア:

[(1, 31688820), (2, 15844410), (3, 10562940), (4, 7922205), (5, 6337764), (6, 5281470), (9, 3520980), (10, 3168882), (12, 2640735), (15, 2112588), (18, 1760490), (20, 1584441), (27, 1173660), (30, 1056294), (31, 1022220), (36, 880245), (45, 704196), (54, 586830), (60, 528147), (62, 511110), (81, 391220), (90, 352098), (93, 340740), (108, 293415), (124, 255555), (135, 234732), (155, 204444), (162, 195610), (180, 176049), (186, 170370), (270, 117366), (279, 113580), (310, 102222), (324, 97805), (372, 85185), (405, 78244), (465, 68148), (540, 58683), (558, 56790), (620, 51111), (631, 50220), (810, 39122), (837, 37860), (930, 34074), (1116, 28395), (1262, 25110), (1395, 22716), (1620, 19561), (1674, 18930), (1860, 17037), (1893, 16740), (2511, 12620), (2524, 12555), (2790, 11358), (3155, 10044), (3348, 9465), (3786, 8370), (4185, 7572), (5022, 6310), (5580, 5679)]