28964450

素因数分解:

$2^1\times 5^2\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{199}}^1$

素因数の和:323

約数の個数: 48

約数和(自身を含む): 56246400

約数和(自身を除く): 27281950

約数列:

[1, 2, 5, 10, 25, 41, 50, 71, 82, 142, 199, 205, 355, 398, 410, 710, 995, 1025, 1775, 1990, 2050, 2911, 3550, 4975, 5822, 8159, 9950, 14129, 14555, 16318, 28258, 29110, 40795, 70645, 72775, 81590, 141290, 145550, 203975, 353225, 407950, 579289, 706450, 1158578, 2896445, 5792890, 14482225, 28964450]

約数ペア:

[(1, 28964450), (2, 14482225), (5, 5792890), (10, 2896445), (25, 1158578), (41, 706450), (50, 579289), (71, 407950), (82, 353225), (142, 203975), (199, 145550), (205, 141290), (355, 81590), (398, 72775), (410, 70645), (710, 40795), (995, 29110), (1025, 28258), (1775, 16318), (1990, 14555), (2050, 14129), (2911, 9950), (3550, 8159), (4975, 5822)]