18580708

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{67}}^1\times {\mathrm{89}}^1$

素因数の和:220

約数の個数: 48

約数和(自身を含む): 35985600

約数和(自身を除く): 17404892

約数列:

[1, 2, 4, 19, 38, 41, 67, 76, 82, 89, 134, 164, 178, 268, 356, 779, 1273, 1558, 1691, 2546, 2747, 3116, 3382, 3649, 5092, 5494, 5963, 6764, 7298, 10988, 11926, 14596, 23852, 52193, 69331, 104386, 113297, 138662, 208772, 226594, 244483, 277324, 453188, 488966, 977932, 4645177, 9290354, 18580708]

約数ペア:

[(1, 18580708), (2, 9290354), (4, 4645177), (19, 977932), (38, 488966), (41, 453188), (67, 277324), (76, 244483), (82, 226594), (89, 208772), (134, 138662), (164, 113297), (178, 104386), (268, 69331), (356, 52193), (779, 23852), (1273, 14596), (1558, 11926), (1691, 10988), (2546, 7298), (2747, 6764), (3116, 5963), (3382, 5494), (3649, 5092)]