20189476760

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{1562653}}^1$

素因数の和:1562700

約数の個数: 64

約数和(自身を含む): 50629989600

約数和(自身を除く): 30440512840

約数列:

[1, 2, 4, 5, 8, 10, 17, 19, 20, 34, 38, 40, 68, 76, 85, 95, 136, 152, 170, 190, 323, 340, 380, 646, 680, 760, 1292, 1615, 2584, 3230, 6460, 12920, 1562653, 3125306, 6250612, 7813265, 12501224, 15626530, 26565101, 29690407, 31253060, 53130202, 59380814, 62506120, 106260404, 118761628, 132825505, 148452035, 212520808, 237523256, 265651010, 296904070, 504736919, 531302020, 593808140, 1009473838, 1062604040, 1187616280, 2018947676, 2523684595, 4037895352, 5047369190, 10094738380, 20189476760]

約数ペア:

[(1, 20189476760), (2, 10094738380), (4, 5047369190), (5, 4037895352), (8, 2523684595), (10, 2018947676), (17, 1187616280), (19, 1062604040), (20, 1009473838), (34, 593808140), (38, 531302020), (40, 504736919), (68, 296904070), (76, 265651010), (85, 237523256), (95, 212520808), (136, 148452035), (152, 132825505), (170, 118761628), (190, 106260404), (323, 62506120), (340, 59380814), (380, 53130202), (646, 31253060), (680, 29690407), (760, 26565101), (1292, 15626530), (1615, 12501224), (2584, 7813265), (3230, 6250612), (6460, 3125306), (12920, 1562653)]