20131976900

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{991723}}^1$

素因数の和:991773

約数の個数: 72

約数和(自身を含む): 51648985920

約数和(自身を除く): 31517009020

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 29, 35, 50, 58, 70, 100, 116, 140, 145, 175, 203, 290, 350, 406, 580, 700, 725, 812, 1015, 1450, 2030, 2900, 4060, 5075, 10150, 20300, 991723, 1983446, 3966892, 4958615, 6942061, 9917230, 13884122, 19834460, 24793075, 27768244, 28759967, 34710305, 49586150, 57519934, 69420610, 99172300, 115039868, 138841220, 143799835, 173551525, 201319769, 287599670, 347103050, 402639538, 575199340, 694206100, 718999175, 805279076, 1006598845, 1437998350, 2013197690, 2875996700, 4026395380, 5032994225, 10065988450, 20131976900]

約数ペア:

[(1, 20131976900), (2, 10065988450), (4, 5032994225), (5, 4026395380), (7, 2875996700), (10, 2013197690), (14, 1437998350), (20, 1006598845), (25, 805279076), (28, 718999175), (29, 694206100), (35, 575199340), (50, 402639538), (58, 347103050), (70, 287599670), (100, 201319769), (116, 173551525), (140, 143799835), (145, 138841220), (175, 115039868), (203, 99172300), (290, 69420610), (350, 57519934), (406, 49586150), (580, 34710305), (700, 28759967), (725, 27768244), (812, 24793075), (1015, 19834460), (1450, 13884122), (2030, 9917230), (2900, 6942061), (4060, 4958615), (5075, 3966892), (10150, 1983446), (20300, 991723)]