25379440

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{283}}^1$

素因数の和:374

約数の個数: 80

約数和(自身を含む): 63388800

約数和(自身を除く): 38009360

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 59, 76, 80, 95, 118, 152, 190, 236, 283, 295, 304, 380, 472, 566, 590, 760, 944, 1121, 1132, 1180, 1415, 1520, 2242, 2264, 2360, 2830, 4484, 4528, 4720, 5377, 5605, 5660, 8968, 10754, 11210, 11320, 16697, 17936, 21508, 22420, 22640, 26885, 33394, 43016, 44840, 53770, 66788, 83485, 86032, 89680, 107540, 133576, 166970, 215080, 267152, 317243, 333940, 430160, 634486, 667880, 1268972, 1335760, 1586215, 2537944, 3172430, 5075888, 6344860, 12689720, 25379440]

約数ペア:

[(1, 25379440), (2, 12689720), (4, 6344860), (5, 5075888), (8, 3172430), (10, 2537944), (16, 1586215), (19, 1335760), (20, 1268972), (38, 667880), (40, 634486), (59, 430160), (76, 333940), (80, 317243), (95, 267152), (118, 215080), (152, 166970), (190, 133576), (236, 107540), (283, 89680), (295, 86032), (304, 83485), (380, 66788), (472, 53770), (566, 44840), (590, 43016), (760, 33394), (944, 26885), (1121, 22640), (1132, 22420), (1180, 21508), (1415, 17936), (1520, 16697), (2242, 11320), (2264, 11210), (2360, 10754), (2830, 8968), (4484, 5660), (4528, 5605), (4720, 5377)]