20539380

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{419}}^1$

素因数の和:493

約数の個数: 96

約数和(自身を含む): 62092800

約数和(自身を除く): 41553420

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 19, 20, 30, 38, 43, 57, 60, 76, 86, 95, 114, 129, 172, 190, 215, 228, 258, 285, 380, 419, 430, 516, 570, 645, 817, 838, 860, 1140, 1257, 1290, 1634, 1676, 2095, 2451, 2514, 2580, 3268, 4085, 4190, 4902, 5028, 6285, 7961, 8170, 8380, 9804, 12255, 12570, 15922, 16340, 18017, 23883, 24510, 25140, 31844, 36034, 39805, 47766, 49020, 54051, 72068, 79610, 90085, 95532, 108102, 119415, 159220, 180170, 216204, 238830, 270255, 342323, 360340, 477660, 540510, 684646, 1026969, 1081020, 1369292, 1711615, 2053938, 3423230, 4107876, 5134845, 6846460, 10269690, 20539380]

約数ペア:

[(1, 20539380), (2, 10269690), (3, 6846460), (4, 5134845), (5, 4107876), (6, 3423230), (10, 2053938), (12, 1711615), (15, 1369292), (19, 1081020), (20, 1026969), (30, 684646), (38, 540510), (43, 477660), (57, 360340), (60, 342323), (76, 270255), (86, 238830), (95, 216204), (114, 180170), (129, 159220), (172, 119415), (190, 108102), (215, 95532), (228, 90085), (258, 79610), (285, 72068), (380, 54051), (419, 49020), (430, 47766), (516, 39805), (570, 36034), (645, 31844), (817, 25140), (838, 24510), (860, 23883), (1140, 18017), (1257, 16340), (1290, 15922), (1634, 12570), (1676, 12255), (2095, 9804), (2451, 8380), (2514, 8170), (2580, 7961), (3268, 6285), (4085, 5028), (4190, 4902)]