79928680

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{163}}^1$

素因数の和:251

約数の個数: 128

約数和(自身を含む): 208293120

約数和(自身を除く): 128364440

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 23, 26, 40, 41, 46, 52, 65, 82, 92, 104, 115, 130, 163, 164, 184, 205, 230, 260, 299, 326, 328, 410, 460, 520, 533, 598, 652, 815, 820, 920, 943, 1066, 1196, 1304, 1495, 1630, 1640, 1886, 2119, 2132, 2392, 2665, 2990, 3260, 3749, 3772, 4238, 4264, 4715, 5330, 5980, 6520, 6683, 7498, 7544, 8476, 9430, 10595, 10660, 11960, 12259, 13366, 14996, 16952, 18745, 18860, 21190, 21320, 24518, 26732, 29992, 33415, 37490, 37720, 42380, 48737, 49036, 53464, 61295, 66830, 74980, 84760, 86879, 97474, 98072, 122590, 133660, 149960, 153709, 173758, 194948, 243685, 245180, 267320, 307418, 347516, 389896, 434395, 487370, 490360, 614836, 695032, 768545, 868790, 974740, 1229672, 1537090, 1737580, 1949480, 1998217, 3074180, 3475160, 3996434, 6148360, 7992868, 9991085, 15985736, 19982170, 39964340, 79928680]

約数ペア:

[(1, 79928680), (2, 39964340), (4, 19982170), (5, 15985736), (8, 9991085), (10, 7992868), (13, 6148360), (20, 3996434), (23, 3475160), (26, 3074180), (40, 1998217), (41, 1949480), (46, 1737580), (52, 1537090), (65, 1229672), (82, 974740), (92, 868790), (104, 768545), (115, 695032), (130, 614836), (163, 490360), (164, 487370), (184, 434395), (205, 389896), (230, 347516), (260, 307418), (299, 267320), (326, 245180), (328, 243685), (410, 194948), (460, 173758), (520, 153709), (533, 149960), (598, 133660), (652, 122590), (815, 98072), (820, 97474), (920, 86879), (943, 84760), (1066, 74980), (1196, 66830), (1304, 61295), (1495, 53464), (1630, 49036), (1640, 48737), (1886, 42380), (2119, 37720), (2132, 37490), (2392, 33415), (2665, 29992), (2990, 26732), (3260, 24518), (3749, 21320), (3772, 21190), (4238, 18860), (4264, 18745), (4715, 16952), (5330, 14996), (5980, 13366), (6520, 12259), (6683, 11960), (7498, 10660), (7544, 10595), (8476, 9430)]