20619870

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{137}}^1\times {\mathrm{173}}^1$

素因数の和:349

約数の個数: 64

約数和(自身を含む): 51865920

約数和(自身を除く): 31246050

約数列:

[1, 2, 3, 5, 6, 10, 15, 29, 30, 58, 87, 137, 145, 173, 174, 274, 290, 346, 411, 435, 519, 685, 822, 865, 870, 1038, 1370, 1730, 2055, 2595, 3973, 4110, 5017, 5190, 7946, 10034, 11919, 15051, 19865, 23701, 23838, 25085, 30102, 39730, 47402, 50170, 59595, 71103, 75255, 118505, 119190, 142206, 150510, 237010, 355515, 687329, 711030, 1374658, 2061987, 3436645, 4123974, 6873290, 10309935, 20619870]

約数ペア:

[(1, 20619870), (2, 10309935), (3, 6873290), (5, 4123974), (6, 3436645), (10, 2061987), (15, 1374658), (29, 711030), (30, 687329), (58, 355515), (87, 237010), (137, 150510), (145, 142206), (173, 119190), (174, 118505), (274, 75255), (290, 71103), (346, 59595), (411, 50170), (435, 47402), (519, 39730), (685, 30102), (822, 25085), (865, 23838), (870, 23701), (1038, 19865), (1370, 15051), (1730, 11919), (2055, 10034), (2595, 7946), (3973, 5190), (4110, 5017)]