20671950

素因数分解:

$2^1\times 3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{10601}}^1$

素因数の和:10629

約数の個数: 48

約数和(自身を含む): 55215216

約数和(自身を除く): 34543266

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 25, 26, 30, 39, 50, 65, 75, 78, 130, 150, 195, 325, 390, 650, 975, 1950, 10601, 21202, 31803, 53005, 63606, 106010, 137813, 159015, 265025, 275626, 318030, 413439, 530050, 689065, 795075, 826878, 1378130, 1590150, 2067195, 3445325, 4134390, 6890650, 10335975, 20671950]

約数ペア:

[(1, 20671950), (2, 10335975), (3, 6890650), (5, 4134390), (6, 3445325), (10, 2067195), (13, 1590150), (15, 1378130), (25, 826878), (26, 795075), (30, 689065), (39, 530050), (50, 413439), (65, 318030), (75, 275626), (78, 265025), (130, 159015), (150, 137813), (195, 106010), (325, 63606), (390, 53005), (650, 31803), (975, 21202), (1950, 10601)]