28159520

素因数分解:

$2^5\times 5^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{157}}^1$

素因数の和:250

約数の個数: 96

約数和(自身を含む): 71668800

約数和(自身を除く): 43509280

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 59, 76, 80, 95, 118, 152, 157, 160, 190, 236, 295, 304, 314, 380, 472, 590, 608, 628, 760, 785, 944, 1121, 1180, 1256, 1520, 1570, 1888, 2242, 2360, 2512, 2983, 3040, 3140, 4484, 4720, 5024, 5605, 5966, 6280, 8968, 9263, 9440, 11210, 11932, 12560, 14915, 17936, 18526, 22420, 23864, 25120, 29830, 35872, 37052, 44840, 46315, 47728, 59660, 74104, 89680, 92630, 95456, 119320, 148208, 175997, 179360, 185260, 238640, 296416, 351994, 370520, 477280, 703988, 741040, 879985, 1407976, 1482080, 1759970, 2815952, 3519940, 5631904, 7039880, 14079760, 28159520]

約数ペア:

[(1, 28159520), (2, 14079760), (4, 7039880), (5, 5631904), (8, 3519940), (10, 2815952), (16, 1759970), (19, 1482080), (20, 1407976), (32, 879985), (38, 741040), (40, 703988), (59, 477280), (76, 370520), (80, 351994), (95, 296416), (118, 238640), (152, 185260), (157, 179360), (160, 175997), (190, 148208), (236, 119320), (295, 95456), (304, 92630), (314, 89680), (380, 74104), (472, 59660), (590, 47728), (608, 46315), (628, 44840), (760, 37052), (785, 35872), (944, 29830), (1121, 25120), (1180, 23864), (1256, 22420), (1520, 18526), (1570, 17936), (1888, 14915), (2242, 12560), (2360, 11932), (2512, 11210), (2983, 9440), (3040, 9263), (3140, 8968), (4484, 6280), (4720, 5966), (5024, 5605)]