15630020

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{41}}^1\times {\mathrm{389}}^1$

素因数の和:453

約数の個数: 72

約数和(自身を含む): 39213720

約数和(自身を除く): 23583700

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 41, 49, 70, 82, 98, 140, 164, 196, 205, 245, 287, 389, 410, 490, 574, 778, 820, 980, 1148, 1435, 1556, 1945, 2009, 2723, 2870, 3890, 4018, 5446, 5740, 7780, 8036, 10045, 10892, 13615, 15949, 19061, 20090, 27230, 31898, 38122, 40180, 54460, 63796, 76244, 79745, 95305, 111643, 159490, 190610, 223286, 318980, 381220, 446572, 558215, 781501, 1116430, 1563002, 2232860, 3126004, 3907505, 7815010, 15630020]

約数ペア:

[(1, 15630020), (2, 7815010), (4, 3907505), (5, 3126004), (7, 2232860), (10, 1563002), (14, 1116430), (20, 781501), (28, 558215), (35, 446572), (41, 381220), (49, 318980), (70, 223286), (82, 190610), (98, 159490), (140, 111643), (164, 95305), (196, 79745), (205, 76244), (245, 63796), (287, 54460), (389, 40180), (410, 38122), (490, 31898), (574, 27230), (778, 20090), (820, 19061), (980, 15949), (1148, 13615), (1435, 10892), (1556, 10045), (1945, 8036), (2009, 7780), (2723, 5740), (2870, 5446), (3890, 4018)]