19877340

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{6761}}^1$

素因数の和:6787

約数の個数: 72

約数和(自身を含む): 64752912

約数和(自身を除く): 44875572

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 420, 490, 588, 735, 980, 1470, 2940, 6761, 13522, 20283, 27044, 33805, 40566, 47327, 67610, 81132, 94654, 101415, 135220, 141981, 189308, 202830, 236635, 283962, 331289, 405660, 473270, 567924, 662578, 709905, 946540, 993867, 1325156, 1419810, 1656445, 1987734, 2839620, 3312890, 3975468, 4969335, 6625780, 9938670, 19877340]

約数ペア:

[(1, 19877340), (2, 9938670), (3, 6625780), (4, 4969335), (5, 3975468), (6, 3312890), (7, 2839620), (10, 1987734), (12, 1656445), (14, 1419810), (15, 1325156), (20, 993867), (21, 946540), (28, 709905), (30, 662578), (35, 567924), (42, 473270), (49, 405660), (60, 331289), (70, 283962), (84, 236635), (98, 202830), (105, 189308), (140, 141981), (147, 135220), (196, 101415), (210, 94654), (245, 81132), (294, 67610), (420, 47327), (490, 40566), (588, 33805), (735, 27044), (980, 20283), (1470, 13522), (2940, 6761)]