309968240

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{157}}^1$

素因数の和:259

約数の個数: 160

約数和(自身を含む): 804055680

約数和(自身を除く): 494087440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 29, 37, 40, 46, 58, 74, 80, 92, 115, 116, 145, 148, 157, 184, 185, 230, 232, 290, 296, 314, 368, 370, 460, 464, 580, 592, 628, 667, 740, 785, 851, 920, 1073, 1160, 1256, 1334, 1480, 1570, 1702, 1840, 2146, 2320, 2512, 2668, 2960, 3140, 3335, 3404, 3611, 4255, 4292, 4553, 5336, 5365, 5809, 6280, 6670, 6808, 7222, 8510, 8584, 9106, 10672, 10730, 11618, 12560, 13340, 13616, 14444, 17020, 17168, 18055, 18212, 21460, 22765, 23236, 24679, 26680, 28888, 29045, 34040, 36110, 36424, 42920, 45530, 46472, 49358, 53360, 57776, 58090, 68080, 72220, 72848, 85840, 91060, 92944, 98716, 104719, 116180, 123395, 133607, 144440, 168461, 182120, 197432, 209438, 232360, 246790, 267214, 288880, 336922, 364240, 394864, 418876, 464720, 493580, 523595, 534428, 668035, 673844, 837752, 842305, 987160, 1047190, 1068856, 1336070, 1347688, 1675504, 1684610, 1974320, 2094380, 2137712, 2672140, 2695376, 3369220, 3874603, 4188760, 5344280, 6738440, 7749206, 8377520, 10688560, 13476880, 15498412, 19373015, 30996824, 38746030, 61993648, 77492060, 154984120, 309968240]

約数ペア:

[(1, 309968240), (2, 154984120), (4, 77492060), (5, 61993648), (8, 38746030), (10, 30996824), (16, 19373015), (20, 15498412), (23, 13476880), (29, 10688560), (37, 8377520), (40, 7749206), (46, 6738440), (58, 5344280), (74, 4188760), (80, 3874603), (92, 3369220), (115, 2695376), (116, 2672140), (145, 2137712), (148, 2094380), (157, 1974320), (184, 1684610), (185, 1675504), (230, 1347688), (232, 1336070), (290, 1068856), (296, 1047190), (314, 987160), (368, 842305), (370, 837752), (460, 673844), (464, 668035), (580, 534428), (592, 523595), (628, 493580), (667, 464720), (740, 418876), (785, 394864), (851, 364240), (920, 336922), (1073, 288880), (1160, 267214), (1256, 246790), (1334, 232360), (1480, 209438), (1570, 197432), (1702, 182120), (1840, 168461), (2146, 144440), (2320, 133607), (2512, 123395), (2668, 116180), (2960, 104719), (3140, 98716), (3335, 92944), (3404, 91060), (3611, 85840), (4255, 72848), (4292, 72220), (4553, 68080), (5336, 58090), (5365, 57776), (5809, 53360), (6280, 49358), (6670, 46472), (6808, 45530), (7222, 42920), (8510, 36424), (8584, 36110), (9106, 34040), (10672, 29045), (10730, 28888), (11618, 26680), (12560, 24679), (13340, 23236), (13616, 22765), (14444, 21460), (17020, 18212), (17168, 18055)]