20626540

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{53}}^1\times {\mathrm{61}}^1$

素因数の和:163

約数の個数: 96

約数和(自身を含む): 50621760

約数和(自身を除く): 29995220

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 29, 44, 53, 55, 58, 61, 106, 110, 116, 122, 145, 212, 220, 244, 265, 290, 305, 319, 530, 580, 583, 610, 638, 671, 1060, 1166, 1220, 1276, 1342, 1537, 1595, 1769, 2332, 2684, 2915, 3074, 3190, 3233, 3355, 3538, 5830, 6148, 6380, 6466, 6710, 7076, 7685, 8845, 11660, 12932, 13420, 15370, 16165, 16907, 17690, 19459, 30740, 32330, 33814, 35380, 35563, 38918, 64660, 67628, 71126, 77836, 84535, 93757, 97295, 142252, 169070, 177815, 187514, 194590, 338140, 355630, 375028, 389180, 468785, 711260, 937570, 1031327, 1875140, 2062654, 4125308, 5156635, 10313270, 20626540]

約数ペア:

[(1, 20626540), (2, 10313270), (4, 5156635), (5, 4125308), (10, 2062654), (11, 1875140), (20, 1031327), (22, 937570), (29, 711260), (44, 468785), (53, 389180), (55, 375028), (58, 355630), (61, 338140), (106, 194590), (110, 187514), (116, 177815), (122, 169070), (145, 142252), (212, 97295), (220, 93757), (244, 84535), (265, 77836), (290, 71126), (305, 67628), (319, 64660), (530, 38918), (580, 35563), (583, 35380), (610, 33814), (638, 32330), (671, 30740), (1060, 19459), (1166, 17690), (1220, 16907), (1276, 16165), (1342, 15370), (1537, 13420), (1595, 12932), (1769, 11660), (2332, 8845), (2684, 7685), (2915, 7076), (3074, 6710), (3190, 6466), (3233, 6380), (3355, 6148), (3538, 5830)]