20753260

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{179}}^1$

素因数の和:247

約数の個数: 96

約数和(自身を含む): 52254720

約数和(自身を除く): 31501460

約数列:

[1, 2, 4, 5, 10, 11, 17, 20, 22, 31, 34, 44, 55, 62, 68, 85, 110, 124, 155, 170, 179, 187, 220, 310, 340, 341, 358, 374, 527, 620, 682, 716, 748, 895, 935, 1054, 1364, 1705, 1790, 1870, 1969, 2108, 2635, 3043, 3410, 3580, 3740, 3938, 5270, 5549, 5797, 6086, 6820, 7876, 9845, 10540, 11098, 11594, 12172, 15215, 19690, 22196, 23188, 27745, 28985, 30430, 33473, 39380, 55490, 57970, 60860, 61039, 66946, 94333, 110980, 115940, 122078, 133892, 167365, 188666, 244156, 305195, 334730, 377332, 471665, 610390, 669460, 943330, 1037663, 1220780, 1886660, 2075326, 4150652, 5188315, 10376630, 20753260]

約数ペア:

[(1, 20753260), (2, 10376630), (4, 5188315), (5, 4150652), (10, 2075326), (11, 1886660), (17, 1220780), (20, 1037663), (22, 943330), (31, 669460), (34, 610390), (44, 471665), (55, 377332), (62, 334730), (68, 305195), (85, 244156), (110, 188666), (124, 167365), (155, 133892), (170, 122078), (179, 115940), (187, 110980), (220, 94333), (310, 66946), (340, 61039), (341, 60860), (358, 57970), (374, 55490), (527, 39380), (620, 33473), (682, 30430), (716, 28985), (748, 27745), (895, 23188), (935, 22196), (1054, 19690), (1364, 15215), (1705, 12172), (1790, 11594), (1870, 11098), (1969, 10540), (2108, 9845), (2635, 7876), (3043, 6820), (3410, 6086), (3580, 5797), (3740, 5549), (3938, 5270)]