18349960

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{67}}^1\times {\mathrm{167}}^1$

素因数の和:286

約数の個数: 64

約数和(自身を含む): 43182720

約数和(自身を除く): 24832760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 67, 82, 134, 164, 167, 205, 268, 328, 334, 335, 410, 536, 668, 670, 820, 835, 1336, 1340, 1640, 1670, 2680, 2747, 3340, 5494, 6680, 6847, 10988, 11189, 13694, 13735, 21976, 22378, 27388, 27470, 34235, 44756, 54776, 54940, 55945, 68470, 89512, 109880, 111890, 136940, 223780, 273880, 447560, 458749, 917498, 1834996, 2293745, 3669992, 4587490, 9174980, 18349960]

約数ペア:

[(1, 18349960), (2, 9174980), (4, 4587490), (5, 3669992), (8, 2293745), (10, 1834996), (20, 917498), (40, 458749), (41, 447560), (67, 273880), (82, 223780), (134, 136940), (164, 111890), (167, 109880), (205, 89512), (268, 68470), (328, 55945), (334, 54940), (335, 54776), (410, 44756), (536, 34235), (668, 27470), (670, 27388), (820, 22378), (835, 21976), (1336, 13735), (1340, 13694), (1640, 11189), (1670, 10988), (2680, 6847), (2747, 6680), (3340, 5494)]