19936700172

素因数分解:

$2^2\times 3^2\times {\mathrm{163}}^1\times {\mathrm{971}}^1\times {\mathrm{3499}}^1$

素因数の和:4643

約数の個数: 72

約数和(自身を含む): 50771448000

約数和(自身を除く): 30834747828

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 163, 326, 489, 652, 971, 978, 1467, 1942, 1956, 2913, 2934, 3499, 3884, 5826, 5868, 6998, 8739, 10497, 11652, 13996, 17478, 20994, 31491, 34956, 41988, 62982, 125964, 158273, 316546, 474819, 570337, 633092, 949638, 1140674, 1424457, 1711011, 1899276, 2281348, 2848914, 3397529, 3422022, 5133033, 5697828, 6795058, 6844044, 10192587, 10266066, 13590116, 20385174, 20532132, 30577761, 40770348, 61155522, 122311044, 553797227, 1107594454, 1661391681, 2215188908, 3322783362, 4984175043, 6645566724, 9968350086, 19936700172]

約数ペア:

[(1, 19936700172), (2, 9968350086), (3, 6645566724), (4, 4984175043), (6, 3322783362), (9, 2215188908), (12, 1661391681), (18, 1107594454), (36, 553797227), (163, 122311044), (326, 61155522), (489, 40770348), (652, 30577761), (971, 20532132), (978, 20385174), (1467, 13590116), (1942, 10266066), (1956, 10192587), (2913, 6844044), (2934, 6795058), (3499, 5697828), (3884, 5133033), (5826, 3422022), (5868, 3397529), (6998, 2848914), (8739, 2281348), (10497, 1899276), (11652, 1711011), (13996, 1424457), (17478, 1140674), (20994, 949638), (31491, 633092), (34956, 570337), (41988, 474819), (62982, 316546), (125964, 158273)]