157788280

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{167}}^1$

素因数の和:293

約数の個数: 128

約数和(自身を含む): 406425600

約数和(自身を除く): 248637320

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 23, 26, 40, 46, 52, 65, 79, 92, 104, 115, 130, 158, 167, 184, 230, 260, 299, 316, 334, 395, 460, 520, 598, 632, 668, 790, 835, 920, 1027, 1196, 1336, 1495, 1580, 1670, 1817, 2054, 2171, 2392, 2990, 3160, 3340, 3634, 3841, 4108, 4342, 5135, 5980, 6680, 7268, 7682, 8216, 8684, 9085, 10270, 10855, 11960, 13193, 14536, 15364, 17368, 18170, 19205, 20540, 21710, 23621, 26386, 30728, 36340, 38410, 41080, 43420, 47242, 49933, 52772, 65965, 72680, 76820, 86840, 94484, 99866, 105544, 118105, 131930, 153640, 171509, 188968, 199732, 236210, 249665, 263860, 303439, 343018, 399464, 472420, 499330, 527720, 606878, 686036, 857545, 944840, 998660, 1213756, 1372072, 1517195, 1715090, 1997320, 2427512, 3034390, 3430180, 3944707, 6068780, 6860360, 7889414, 12137560, 15778828, 19723535, 31557656, 39447070, 78894140, 157788280]

約数ペア:

[(1, 157788280), (2, 78894140), (4, 39447070), (5, 31557656), (8, 19723535), (10, 15778828), (13, 12137560), (20, 7889414), (23, 6860360), (26, 6068780), (40, 3944707), (46, 3430180), (52, 3034390), (65, 2427512), (79, 1997320), (92, 1715090), (104, 1517195), (115, 1372072), (130, 1213756), (158, 998660), (167, 944840), (184, 857545), (230, 686036), (260, 606878), (299, 527720), (316, 499330), (334, 472420), (395, 399464), (460, 343018), (520, 303439), (598, 263860), (632, 249665), (668, 236210), (790, 199732), (835, 188968), (920, 171509), (1027, 153640), (1196, 131930), (1336, 118105), (1495, 105544), (1580, 99866), (1670, 94484), (1817, 86840), (2054, 76820), (2171, 72680), (2392, 65965), (2990, 52772), (3160, 49933), (3340, 47242), (3634, 43420), (3841, 41080), (4108, 38410), (4342, 36340), (5135, 30728), (5980, 26386), (6680, 23621), (7268, 21710), (7682, 20540), (8216, 19205), (8684, 18170), (9085, 17368), (10270, 15364), (10855, 14536), (11960, 13193)]