61538180

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{59}}^1\times {\mathrm{431}}^1$

素因数の和:521

約数の個数: 72

約数和(自身を含む): 144789120

約数和(自身を除く): 83250940

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 59, 110, 118, 121, 220, 236, 242, 295, 431, 484, 590, 605, 649, 862, 1180, 1210, 1298, 1724, 2155, 2420, 2596, 3245, 4310, 4741, 6490, 7139, 8620, 9482, 12980, 14278, 18964, 23705, 25429, 28556, 35695, 47410, 50858, 52151, 71390, 94820, 101716, 104302, 127145, 142780, 208604, 254290, 260755, 279719, 508580, 521510, 559438, 1043020, 1118876, 1398595, 2797190, 3076909, 5594380, 6153818, 12307636, 15384545, 30769090, 61538180]

約数ペア:

[(1, 61538180), (2, 30769090), (4, 15384545), (5, 12307636), (10, 6153818), (11, 5594380), (20, 3076909), (22, 2797190), (44, 1398595), (55, 1118876), (59, 1043020), (110, 559438), (118, 521510), (121, 508580), (220, 279719), (236, 260755), (242, 254290), (295, 208604), (431, 142780), (484, 127145), (590, 104302), (605, 101716), (649, 94820), (862, 71390), (1180, 52151), (1210, 50858), (1298, 47410), (1724, 35695), (2155, 28556), (2420, 25429), (2596, 23705), (3245, 18964), (4310, 14278), (4741, 12980), (6490, 9482), (7139, 8620)]