7638280

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{397}}^1$

素因数の和:458

約数の個数: 64

約数和(自身を含む): 19056240

約数和(自身を除く): 11417960

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 37, 40, 52, 65, 74, 104, 130, 148, 185, 260, 296, 370, 397, 481, 520, 740, 794, 962, 1480, 1588, 1924, 1985, 2405, 3176, 3848, 3970, 4810, 5161, 7940, 9620, 10322, 14689, 15880, 19240, 20644, 25805, 29378, 41288, 51610, 58756, 73445, 103220, 117512, 146890, 190957, 206440, 293780, 381914, 587560, 763828, 954785, 1527656, 1909570, 3819140, 7638280]

約数ペア:

[(1, 7638280), (2, 3819140), (4, 1909570), (5, 1527656), (8, 954785), (10, 763828), (13, 587560), (20, 381914), (26, 293780), (37, 206440), (40, 190957), (52, 146890), (65, 117512), (74, 103220), (104, 73445), (130, 58756), (148, 51610), (185, 41288), (260, 29378), (296, 25805), (370, 20644), (397, 19240), (481, 15880), (520, 14689), (740, 10322), (794, 9620), (962, 7940), (1480, 5161), (1588, 4810), (1924, 3970), (1985, 3848), (2405, 3176)]