86996980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{61}}^2\times {\mathrm{167}}^1$

素因数の和:305

約数の個数: 72

約数和(自身を含む): 213542784

約数和(自身を除く): 126545804

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 61, 70, 122, 140, 167, 244, 305, 334, 427, 610, 668, 835, 854, 1169, 1220, 1670, 1708, 2135, 2338, 3340, 3721, 4270, 4676, 5845, 7442, 8540, 10187, 11690, 14884, 18605, 20374, 23380, 26047, 37210, 40748, 50935, 52094, 71309, 74420, 101870, 104188, 130235, 142618, 203740, 260470, 285236, 356545, 520940, 621407, 713090, 1242814, 1426180, 2485628, 3107035, 4349849, 6214070, 8699698, 12428140, 17399396, 21749245, 43498490, 86996980]

約数ペア:

[(1, 86996980), (2, 43498490), (4, 21749245), (5, 17399396), (7, 12428140), (10, 8699698), (14, 6214070), (20, 4349849), (28, 3107035), (35, 2485628), (61, 1426180), (70, 1242814), (122, 713090), (140, 621407), (167, 520940), (244, 356545), (305, 285236), (334, 260470), (427, 203740), (610, 142618), (668, 130235), (835, 104188), (854, 101870), (1169, 74420), (1220, 71309), (1670, 52094), (1708, 50935), (2135, 40748), (2338, 37210), (3340, 26047), (3721, 23380), (4270, 20374), (4676, 18605), (5845, 14884), (7442, 11690), (8540, 10187)]