19277660

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^2\times {\mathrm{59}}^1$

素因数の和:147

約数の個数: 72

約数和(自身を含む): 45042480

約数和(自身を除く): 25764820

約数列:

[1, 2, 4, 5, 10, 17, 20, 31, 34, 59, 62, 68, 85, 118, 124, 155, 170, 236, 295, 310, 340, 527, 590, 620, 961, 1003, 1054, 1180, 1829, 1922, 2006, 2108, 2635, 3658, 3844, 4012, 4805, 5015, 5270, 7316, 9145, 9610, 10030, 10540, 16337, 18290, 19220, 20060, 31093, 32674, 36580, 56699, 62186, 65348, 81685, 113398, 124372, 155465, 163370, 226796, 283495, 310930, 326740, 566990, 621860, 963883, 1133980, 1927766, 3855532, 4819415, 9638830, 19277660]

約数ペア:

[(1, 19277660), (2, 9638830), (4, 4819415), (5, 3855532), (10, 1927766), (17, 1133980), (20, 963883), (31, 621860), (34, 566990), (59, 326740), (62, 310930), (68, 283495), (85, 226796), (118, 163370), (124, 155465), (155, 124372), (170, 113398), (236, 81685), (295, 65348), (310, 62186), (340, 56699), (527, 36580), (590, 32674), (620, 31093), (961, 20060), (1003, 19220), (1054, 18290), (1180, 16337), (1829, 10540), (1922, 10030), (2006, 9610), (2108, 9145), (2635, 7316), (3658, 5270), (3844, 5015), (4012, 4805)]