20050020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{167}}^1$

素因数の和:234

約数の個数: 144

約数和(自身を含む): 66044160

約数和(自身を除く): 45994140

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 23, 29, 30, 36, 45, 46, 58, 60, 69, 87, 90, 92, 115, 116, 138, 145, 167, 174, 180, 207, 230, 261, 276, 290, 334, 345, 348, 414, 435, 460, 501, 522, 580, 667, 668, 690, 828, 835, 870, 1002, 1035, 1044, 1305, 1334, 1380, 1503, 1670, 1740, 2001, 2004, 2070, 2505, 2610, 2668, 3006, 3335, 3340, 3841, 4002, 4140, 4843, 5010, 5220, 6003, 6012, 6670, 7515, 7682, 8004, 9686, 10005, 10020, 11523, 12006, 13340, 14529, 15030, 15364, 19205, 19372, 20010, 23046, 24012, 24215, 29058, 30015, 30060, 34569, 38410, 40020, 43587, 46092, 48430, 57615, 58116, 60030, 69138, 72645, 76820, 87174, 96860, 111389, 115230, 120060, 138276, 145290, 172845, 174348, 217935, 222778, 230460, 290580, 334167, 345690, 435870, 445556, 556945, 668334, 691380, 871740, 1002501, 1113890, 1336668, 1670835, 2005002, 2227780, 3341670, 4010004, 5012505, 6683340, 10025010, 20050020]

約数ペア:

[(1, 20050020), (2, 10025010), (3, 6683340), (4, 5012505), (5, 4010004), (6, 3341670), (9, 2227780), (10, 2005002), (12, 1670835), (15, 1336668), (18, 1113890), (20, 1002501), (23, 871740), (29, 691380), (30, 668334), (36, 556945), (45, 445556), (46, 435870), (58, 345690), (60, 334167), (69, 290580), (87, 230460), (90, 222778), (92, 217935), (115, 174348), (116, 172845), (138, 145290), (145, 138276), (167, 120060), (174, 115230), (180, 111389), (207, 96860), (230, 87174), (261, 76820), (276, 72645), (290, 69138), (334, 60030), (345, 58116), (348, 57615), (414, 48430), (435, 46092), (460, 43587), (501, 40020), (522, 38410), (580, 34569), (667, 30060), (668, 30015), (690, 29058), (828, 24215), (835, 24012), (870, 23046), (1002, 20010), (1035, 19372), (1044, 19205), (1305, 15364), (1334, 15030), (1380, 14529), (1503, 13340), (1670, 12006), (1740, 11523), (2001, 10020), (2004, 10005), (2070, 9686), (2505, 8004), (2610, 7682), (2668, 7515), (3006, 6670), (3335, 6012), (3340, 6003), (3841, 5220), (4002, 5010), (4140, 4843)]