21388895840

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{541217}}^1$

素因数の和:541264

約数の個数: 96

約数和(自身を含む): 57282513120

約数和(自身を除く): 35893617280

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 19, 20, 26, 32, 38, 40, 52, 65, 76, 80, 95, 104, 130, 152, 160, 190, 208, 247, 260, 304, 380, 416, 494, 520, 608, 760, 988, 1040, 1235, 1520, 1976, 2080, 2470, 3040, 3952, 4940, 7904, 9880, 19760, 39520, 541217, 1082434, 2164868, 2706085, 4329736, 5412170, 7035821, 8659472, 10283123, 10824340, 14071642, 17318944, 20566246, 21648680, 28143284, 35179105, 41132492, 43297360, 51415615, 56286568, 70358210, 82264984, 86594720, 102831230, 112573136, 133680599, 140716420, 164529968, 205662460, 225146272, 267361198, 281432840, 329059936, 411324920, 534722396, 562865680, 668402995, 822649840, 1069444792, 1125731360, 1336805990, 1645299680, 2138889584, 2673611980, 4277779168, 5347223960, 10694447920, 21388895840]

約数ペア:

[(1, 21388895840), (2, 10694447920), (4, 5347223960), (5, 4277779168), (8, 2673611980), (10, 2138889584), (13, 1645299680), (16, 1336805990), (19, 1125731360), (20, 1069444792), (26, 822649840), (32, 668402995), (38, 562865680), (40, 534722396), (52, 411324920), (65, 329059936), (76, 281432840), (80, 267361198), (95, 225146272), (104, 205662460), (130, 164529968), (152, 140716420), (160, 133680599), (190, 112573136), (208, 102831230), (247, 86594720), (260, 82264984), (304, 70358210), (380, 56286568), (416, 51415615), (494, 43297360), (520, 41132492), (608, 35179105), (760, 28143284), (988, 21648680), (1040, 20566246), (1235, 17318944), (1520, 14071642), (1976, 10824340), (2080, 10283123), (2470, 8659472), (3040, 7035821), (3952, 5412170), (4940, 4329736), (7904, 2706085), (9880, 2164868), (19760, 1082434), (39520, 541217)]