7871956820

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{269}}^1\times {\mathrm{2297}}^1$

素因数の和:2602

約数の個数: 144

約数和(自身を含む): 20795337360

約数和(自身を除く): 12923380540

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 49, 52, 65, 70, 91, 98, 130, 140, 182, 196, 245, 260, 269, 364, 455, 490, 538, 637, 910, 980, 1076, 1274, 1345, 1820, 1883, 2297, 2548, 2690, 3185, 3497, 3766, 4594, 5380, 6370, 6994, 7532, 9188, 9415, 11485, 12740, 13181, 13988, 16079, 17485, 18830, 22970, 24479, 26362, 29861, 32158, 34970, 37660, 45940, 48958, 52724, 59722, 64316, 65905, 69940, 80395, 97916, 112553, 119444, 122395, 131810, 149305, 160790, 171353, 209027, 225106, 244790, 263620, 298610, 321580, 342706, 418054, 450212, 489580, 562765, 597220, 617893, 685412, 836108, 856765, 1045135, 1125530, 1235786, 1463189, 1713530, 2090270, 2251060, 2471572, 2926378, 3089465, 3427060, 4180540, 4325251, 5852756, 6178930, 7315945, 8032609, 8650502, 12357860, 14631890, 16065218, 17301004, 21626255, 29263780, 30276757, 32130436, 40163045, 43252510, 56228263, 60553514, 80326090, 86505020, 112456526, 121107028, 151383785, 160652180, 224913052, 281141315, 302767570, 393597841, 562282630, 605535140, 787195682, 1124565260, 1574391364, 1967989205, 3935978410, 7871956820]

約数ペア:

[(1, 7871956820), (2, 3935978410), (4, 1967989205), (5, 1574391364), (7, 1124565260), (10, 787195682), (13, 605535140), (14, 562282630), (20, 393597841), (26, 302767570), (28, 281141315), (35, 224913052), (49, 160652180), (52, 151383785), (65, 121107028), (70, 112456526), (91, 86505020), (98, 80326090), (130, 60553514), (140, 56228263), (182, 43252510), (196, 40163045), (245, 32130436), (260, 30276757), (269, 29263780), (364, 21626255), (455, 17301004), (490, 16065218), (538, 14631890), (637, 12357860), (910, 8650502), (980, 8032609), (1076, 7315945), (1274, 6178930), (1345, 5852756), (1820, 4325251), (1883, 4180540), (2297, 3427060), (2548, 3089465), (2690, 2926378), (3185, 2471572), (3497, 2251060), (3766, 2090270), (4594, 1713530), (5380, 1463189), (6370, 1235786), (6994, 1125530), (7532, 1045135), (9188, 856765), (9415, 836108), (11485, 685412), (12740, 617893), (13181, 597220), (13988, 562765), (16079, 489580), (17485, 450212), (18830, 418054), (22970, 342706), (24479, 321580), (26362, 298610), (29861, 263620), (32158, 244790), (34970, 225106), (37660, 209027), (45940, 171353), (48958, 160790), (52724, 149305), (59722, 131810), (64316, 122395), (65905, 119444), (69940, 112553), (80395, 97916)]