20168099536

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{31}}^2\times {\mathrm{163}}^1\times {\mathrm{619}}^1$

素因数の和:865

約数の個数: 120

約数和(自身を含む): 43820216160

約数和(自身を除く): 23652116624

約数列:

[1, 2, 4, 8, 13, 16, 26, 31, 52, 62, 104, 124, 163, 208, 248, 326, 403, 496, 619, 652, 806, 961, 1238, 1304, 1612, 1922, 2119, 2476, 2608, 3224, 3844, 4238, 4952, 5053, 6448, 7688, 8047, 8476, 9904, 10106, 12493, 15376, 16094, 16952, 19189, 20212, 24986, 32188, 33904, 38378, 40424, 49972, 64376, 65689, 76756, 80848, 99944, 100897, 128752, 131378, 153512, 156643, 199888, 201794, 249457, 262756, 307024, 313286, 403588, 498914, 525512, 594859, 626572, 807176, 997828, 1051024, 1189718, 1253144, 1311661, 1614352, 1995656, 2036359, 2379436, 2506288, 2623322, 3127807, 3991312, 4072718, 4758872, 5246644, 6255614, 7733167, 8145436, 9517744, 10493288, 12511228, 15466334, 16290872, 20986576, 25022456, 30932668, 32581744, 40661491, 50044912, 61865336, 81322982, 96962017, 123730672, 162645964, 193924034, 325291928, 387848068, 650583856, 775696136, 1260506221, 1551392272, 2521012442, 5042024884, 10084049768, 20168099536]

約数ペア:

[(1, 20168099536), (2, 10084049768), (4, 5042024884), (8, 2521012442), (13, 1551392272), (16, 1260506221), (26, 775696136), (31, 650583856), (52, 387848068), (62, 325291928), (104, 193924034), (124, 162645964), (163, 123730672), (208, 96962017), (248, 81322982), (326, 61865336), (403, 50044912), (496, 40661491), (619, 32581744), (652, 30932668), (806, 25022456), (961, 20986576), (1238, 16290872), (1304, 15466334), (1612, 12511228), (1922, 10493288), (2119, 9517744), (2476, 8145436), (2608, 7733167), (3224, 6255614), (3844, 5246644), (4238, 4758872), (4952, 4072718), (5053, 3991312), (6448, 3127807), (7688, 2623322), (8047, 2506288), (8476, 2379436), (9904, 2036359), (10106, 1995656), (12493, 1614352), (15376, 1311661), (16094, 1253144), (16952, 1189718), (19189, 1051024), (20212, 997828), (24986, 807176), (32188, 626572), (33904, 594859), (38378, 525512), (40424, 498914), (49972, 403588), (64376, 313286), (65689, 307024), (76756, 262756), (80848, 249457), (99944, 201794), (100897, 199888), (128752, 156643), (131378, 153512)]