31400820

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{15859}}^1$

素因数の和:15885

約数の個数: 72

約数和(自身を含む): 103914720

約数和(自身を除く): 72513900

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 33, 36, 44, 45, 55, 60, 66, 90, 99, 110, 132, 165, 180, 198, 220, 330, 396, 495, 660, 990, 1980, 15859, 31718, 47577, 63436, 79295, 95154, 142731, 158590, 174449, 190308, 237885, 285462, 317180, 348898, 475770, 523347, 570924, 697796, 713655, 872245, 951540, 1046694, 1427310, 1570041, 1744490, 2093388, 2616735, 2854620, 3140082, 3488980, 5233470, 6280164, 7850205, 10466940, 15700410, 31400820]

約数ペア:

[(1, 31400820), (2, 15700410), (3, 10466940), (4, 7850205), (5, 6280164), (6, 5233470), (9, 3488980), (10, 3140082), (11, 2854620), (12, 2616735), (15, 2093388), (18, 1744490), (20, 1570041), (22, 1427310), (30, 1046694), (33, 951540), (36, 872245), (44, 713655), (45, 697796), (55, 570924), (60, 523347), (66, 475770), (90, 348898), (99, 317180), (110, 285462), (132, 237885), (165, 190308), (180, 174449), (198, 158590), (220, 142731), (330, 95154), (396, 79295), (495, 63436), (660, 47577), (990, 31718), (1980, 15859)]