1988613978

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{227}}^1\times {\mathrm{3623}}^1$

素因数の和:3899

約数の個数: 64

約数和(自身を含む): 4442038272

約数和(自身を除く): 2453424294

約数列:

[1, 2, 3, 6, 13, 26, 31, 39, 62, 78, 93, 186, 227, 403, 454, 681, 806, 1209, 1362, 2418, 2951, 3623, 5902, 7037, 7246, 8853, 10869, 14074, 17706, 21111, 21738, 42222, 47099, 91481, 94198, 112313, 141297, 182962, 224626, 274443, 282594, 336939, 548886, 673878, 822421, 1460069, 1644842, 2467263, 2920138, 4380207, 4934526, 8760414, 10691473, 21382946, 25495051, 32074419, 50990102, 64148838, 76485153, 152970306, 331435663, 662871326, 994306989, 1988613978]

約数ペア:

[(1, 1988613978), (2, 994306989), (3, 662871326), (6, 331435663), (13, 152970306), (26, 76485153), (31, 64148838), (39, 50990102), (62, 32074419), (78, 25495051), (93, 21382946), (186, 10691473), (227, 8760414), (403, 4934526), (454, 4380207), (681, 2920138), (806, 2467263), (1209, 1644842), (1362, 1460069), (2418, 822421), (2951, 673878), (3623, 548886), (5902, 336939), (7037, 282594), (7246, 274443), (8853, 224626), (10869, 182962), (14074, 141297), (17706, 112313), (21111, 94198), (21738, 91481), (42222, 47099)]