1981604560

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{2239}}^1$

素因数の和:2325

約数の個数: 160

約数和(自身を含む): 5319659520

約数和(自身を除く): 3338054960

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 23, 26, 37, 40, 46, 52, 65, 74, 80, 92, 104, 115, 130, 148, 184, 185, 208, 230, 260, 296, 299, 368, 370, 460, 481, 520, 592, 598, 740, 851, 920, 962, 1040, 1196, 1480, 1495, 1702, 1840, 1924, 2239, 2392, 2405, 2960, 2990, 3404, 3848, 4255, 4478, 4784, 4810, 5980, 6808, 7696, 8510, 8956, 9620, 11063, 11195, 11960, 13616, 17020, 17912, 19240, 22126, 22390, 23920, 29107, 34040, 35824, 38480, 44252, 44780, 51497, 55315, 58214, 68080, 82843, 88504, 89560, 102994, 110630, 116428, 145535, 165686, 177008, 179120, 205988, 221260, 232856, 257485, 291070, 331372, 411976, 414215, 442520, 465712, 514970, 582140, 662744, 669461, 823952, 828430, 885040, 1029940, 1076959, 1164280, 1325488, 1338922, 1656860, 1905389, 2059880, 2153918, 2328560, 2677844, 3313720, 3347305, 3810778, 4119760, 4307836, 5355688, 5384795, 6627440, 6694610, 7621556, 8615672, 9526945, 10711376, 10769590, 13389220, 15243112, 17231344, 19053890, 21539180, 24770057, 26778440, 30486224, 38107780, 43078360, 49540114, 53556880, 76215560, 86156720, 99080228, 123850285, 152431120, 198160456, 247700570, 396320912, 495401140, 990802280, 1981604560]

約数ペア:

[(1, 1981604560), (2, 990802280), (4, 495401140), (5, 396320912), (8, 247700570), (10, 198160456), (13, 152431120), (16, 123850285), (20, 99080228), (23, 86156720), (26, 76215560), (37, 53556880), (40, 49540114), (46, 43078360), (52, 38107780), (65, 30486224), (74, 26778440), (80, 24770057), (92, 21539180), (104, 19053890), (115, 17231344), (130, 15243112), (148, 13389220), (184, 10769590), (185, 10711376), (208, 9526945), (230, 8615672), (260, 7621556), (296, 6694610), (299, 6627440), (368, 5384795), (370, 5355688), (460, 4307836), (481, 4119760), (520, 3810778), (592, 3347305), (598, 3313720), (740, 2677844), (851, 2328560), (920, 2153918), (962, 2059880), (1040, 1905389), (1196, 1656860), (1480, 1338922), (1495, 1325488), (1702, 1164280), (1840, 1076959), (1924, 1029940), (2239, 885040), (2392, 828430), (2405, 823952), (2960, 669461), (2990, 662744), (3404, 582140), (3848, 514970), (4255, 465712), (4478, 442520), (4784, 414215), (4810, 411976), (5980, 331372), (6808, 291070), (7696, 257485), (8510, 232856), (8956, 221260), (9620, 205988), (11063, 179120), (11195, 177008), (11960, 165686), (13616, 145535), (17020, 116428), (17912, 110630), (19240, 102994), (22126, 89560), (22390, 88504), (23920, 82843), (29107, 68080), (34040, 58214), (35824, 55315), (38480, 51497), (44252, 44780)]