254457320

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{199}}^1\times {\mathrm{2459}}^1$

素因数の和:2682

約数の個数: 64

約数和(自身を含む): 619920000

約数和(自身を除く): 365462680

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 199, 260, 398, 520, 796, 995, 1592, 1990, 2459, 2587, 3980, 4918, 5174, 7960, 9836, 10348, 12295, 12935, 19672, 20696, 24590, 25870, 31967, 49180, 51740, 63934, 98360, 103480, 127868, 159835, 255736, 319670, 489341, 639340, 978682, 1278680, 1957364, 2446705, 3914728, 4893410, 6361433, 9786820, 12722866, 19573640, 25445732, 31807165, 50891464, 63614330, 127228660, 254457320]

約数ペア:

[(1, 254457320), (2, 127228660), (4, 63614330), (5, 50891464), (8, 31807165), (10, 25445732), (13, 19573640), (20, 12722866), (26, 9786820), (40, 6361433), (52, 4893410), (65, 3914728), (104, 2446705), (130, 1957364), (199, 1278680), (260, 978682), (398, 639340), (520, 489341), (796, 319670), (995, 255736), (1592, 159835), (1990, 127868), (2459, 103480), (2587, 98360), (3980, 63934), (4918, 51740), (5174, 49180), (7960, 31967), (9836, 25870), (10348, 24590), (12295, 20696), (12935, 19672)]