28909692

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{89}}^1\times {\mathrm{1289}}^1$

素因数の和:1395

約数の個数: 72

約数和(自身を含む): 84520800

約数和(自身を除く): 55611108

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 89, 126, 178, 252, 267, 356, 534, 623, 801, 1068, 1246, 1289, 1602, 1869, 2492, 2578, 3204, 3738, 3867, 5156, 5607, 7476, 7734, 9023, 11214, 11601, 15468, 18046, 22428, 23202, 27069, 36092, 46404, 54138, 81207, 108276, 114721, 162414, 229442, 324828, 344163, 458884, 688326, 803047, 1032489, 1376652, 1606094, 2064978, 2409141, 3212188, 4129956, 4818282, 7227423, 9636564, 14454846, 28909692]

約数ペア:

[(1, 28909692), (2, 14454846), (3, 9636564), (4, 7227423), (6, 4818282), (7, 4129956), (9, 3212188), (12, 2409141), (14, 2064978), (18, 1606094), (21, 1376652), (28, 1032489), (36, 803047), (42, 688326), (63, 458884), (84, 344163), (89, 324828), (126, 229442), (178, 162414), (252, 114721), (267, 108276), (356, 81207), (534, 54138), (623, 46404), (801, 36092), (1068, 27069), (1246, 23202), (1289, 22428), (1602, 18046), (1869, 15468), (2492, 11601), (2578, 11214), (3204, 9023), (3738, 7734), (3867, 7476), (5156, 5607)]