16778440

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{1933}}^1$

素因数の和:1982

約数の個数: 64

約数和(自身を含む): 44559360

約数和(自身を除く): 27780920

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 31, 35, 40, 56, 62, 70, 124, 140, 155, 217, 248, 280, 310, 434, 620, 868, 1085, 1240, 1736, 1933, 2170, 3866, 4340, 7732, 8680, 9665, 13531, 15464, 19330, 27062, 38660, 54124, 59923, 67655, 77320, 108248, 119846, 135310, 239692, 270620, 299615, 419461, 479384, 541240, 599230, 838922, 1198460, 1677844, 2097305, 2396920, 3355688, 4194610, 8389220, 16778440]

約数ペア:

[(1, 16778440), (2, 8389220), (4, 4194610), (5, 3355688), (7, 2396920), (8, 2097305), (10, 1677844), (14, 1198460), (20, 838922), (28, 599230), (31, 541240), (35, 479384), (40, 419461), (56, 299615), (62, 270620), (70, 239692), (124, 135310), (140, 119846), (155, 108248), (217, 77320), (248, 67655), (280, 59923), (310, 54124), (434, 38660), (620, 27062), (868, 19330), (1085, 15464), (1240, 13531), (1736, 9665), (1933, 8680), (2170, 7732), (3866, 4340)]