25063480

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{307}}^1$

素因数の和:488

約数の個数: 64

約数和(自身を含む): 61316640

約数和(自身を除く): 36253160

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 157, 260, 307, 314, 520, 614, 628, 785, 1228, 1256, 1535, 1570, 2041, 2456, 3070, 3140, 3991, 4082, 6140, 6280, 7982, 8164, 10205, 12280, 15964, 16328, 19955, 20410, 31928, 39910, 40820, 48199, 79820, 81640, 96398, 159640, 192796, 240995, 385592, 481990, 626587, 963980, 1253174, 1927960, 2506348, 3132935, 5012696, 6265870, 12531740, 25063480]

約数ペア:

[(1, 25063480), (2, 12531740), (4, 6265870), (5, 5012696), (8, 3132935), (10, 2506348), (13, 1927960), (20, 1253174), (26, 963980), (40, 626587), (52, 481990), (65, 385592), (104, 240995), (130, 192796), (157, 159640), (260, 96398), (307, 81640), (314, 79820), (520, 48199), (614, 40820), (628, 39910), (785, 31928), (1228, 20410), (1256, 19955), (1535, 16328), (1570, 15964), (2041, 12280), (2456, 10205), (3070, 8164), (3140, 7982), (3991, 6280), (4082, 6140)]