638431236

素因数分解:

$2^2\times 3^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{30109}}^1$

素因数の和:30169

約数の個数: 72

約数和(自身を含む): 1753606400

約数和(自身を除く): 1115175164

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 19, 31, 36, 38, 57, 62, 76, 93, 114, 124, 171, 186, 228, 279, 342, 372, 558, 589, 684, 1116, 1178, 1767, 2356, 3534, 5301, 7068, 10602, 21204, 30109, 60218, 90327, 120436, 180654, 270981, 361308, 541962, 572071, 933379, 1083924, 1144142, 1716213, 1866758, 2288284, 2800137, 3432426, 3733516, 5148639, 5600274, 6864852, 8400411, 10297278, 11200548, 16800822, 17734201, 20594556, 33601644, 35468402, 53202603, 70936804, 106405206, 159607809, 212810412, 319215618, 638431236]

約数ペア:

[(1, 638431236), (2, 319215618), (3, 212810412), (4, 159607809), (6, 106405206), (9, 70936804), (12, 53202603), (18, 35468402), (19, 33601644), (31, 20594556), (36, 17734201), (38, 16800822), (57, 11200548), (62, 10297278), (76, 8400411), (93, 6864852), (114, 5600274), (124, 5148639), (171, 3733516), (186, 3432426), (228, 2800137), (279, 2288284), (342, 1866758), (372, 1716213), (558, 1144142), (589, 1083924), (684, 933379), (1116, 572071), (1178, 541962), (1767, 361308), (2356, 270981), (3534, 180654), (5301, 120436), (7068, 90327), (10602, 60218), (21204, 30109)]