81086964

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{239}}^1\times {\mathrm{577}}^1$

素因数の和:837

約数の個数: 72

約数和(自身を含む): 221397120

約数和(自身を除く): 140310156

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 49, 84, 98, 147, 196, 239, 294, 478, 577, 588, 717, 956, 1154, 1434, 1673, 1731, 2308, 2868, 3346, 3462, 4039, 5019, 6692, 6924, 8078, 10038, 11711, 12117, 16156, 20076, 23422, 24234, 28273, 35133, 46844, 48468, 56546, 70266, 84819, 113092, 137903, 140532, 169638, 275806, 339276, 413709, 551612, 827418, 965321, 1654836, 1930642, 2895963, 3861284, 5791926, 6757247, 11583852, 13514494, 20271741, 27028988, 40543482, 81086964]

約数ペア:

[(1, 81086964), (2, 40543482), (3, 27028988), (4, 20271741), (6, 13514494), (7, 11583852), (12, 6757247), (14, 5791926), (21, 3861284), (28, 2895963), (42, 1930642), (49, 1654836), (84, 965321), (98, 827418), (147, 551612), (196, 413709), (239, 339276), (294, 275806), (478, 169638), (577, 140532), (588, 137903), (717, 113092), (956, 84819), (1154, 70266), (1434, 56546), (1673, 48468), (1731, 46844), (2308, 35133), (2868, 28273), (3346, 24234), (3462, 23422), (4039, 20076), (5019, 16156), (6692, 12117), (6924, 11711), (8078, 10038)]