42809450

素因数分解:

$2^1\times 5^2\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{389}}^1$

素因数の和:503

約数の個数: 48

約数和(自身を含む): 83566080

約数和(自身を除く): 40756630

約数列:

[1, 2, 5, 10, 25, 31, 50, 62, 71, 142, 155, 310, 355, 389, 710, 775, 778, 1550, 1775, 1945, 2201, 3550, 3890, 4402, 9725, 11005, 12059, 19450, 22010, 24118, 27619, 55025, 55238, 60295, 110050, 120590, 138095, 276190, 301475, 602950, 690475, 856189, 1380950, 1712378, 4280945, 8561890, 21404725, 42809450]

約数ペア:

[(1, 42809450), (2, 21404725), (5, 8561890), (10, 4280945), (25, 1712378), (31, 1380950), (50, 856189), (62, 690475), (71, 602950), (142, 301475), (155, 276190), (310, 138095), (355, 120590), (389, 110050), (710, 60295), (775, 55238), (778, 55025), (1550, 27619), (1775, 24118), (1945, 22010), (2201, 19450), (3550, 12059), (3890, 11005), (4402, 9725)]