20110950920

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{811}}^1\times {\mathrm{10163}}^1$

素因数の和:11046

約数の個数: 64

約数和(自身を含む): 46052677440

約数和(自身を除く): 25941726520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 811, 1220, 1622, 2440, 3244, 4055, 6488, 8110, 10163, 16220, 20326, 32440, 40652, 49471, 50815, 81304, 98942, 101630, 197884, 203260, 247355, 395768, 406520, 494710, 619943, 989420, 1239886, 1978840, 2479772, 3099715, 4959544, 6199430, 8242193, 12398860, 16484386, 24797720, 32968772, 41210965, 65937544, 82421930, 164843860, 329687720, 502773773, 1005547546, 2011095092, 2513868865, 4022190184, 5027737730, 10055475460, 20110950920]

約数ペア:

[(1, 20110950920), (2, 10055475460), (4, 5027737730), (5, 4022190184), (8, 2513868865), (10, 2011095092), (20, 1005547546), (40, 502773773), (61, 329687720), (122, 164843860), (244, 82421930), (305, 65937544), (488, 41210965), (610, 32968772), (811, 24797720), (1220, 16484386), (1622, 12398860), (2440, 8242193), (3244, 6199430), (4055, 4959544), (6488, 3099715), (8110, 2479772), (10163, 1978840), (16220, 1239886), (20326, 989420), (32440, 619943), (40652, 494710), (49471, 406520), (50815, 395768), (81304, 247355), (98942, 203260), (101630, 197884)]