28291000

素因数分解:

$2^3\times 5^3\times {\mathrm{19}}^1\times {\mathrm{1489}}^1$

素因数の和:1529

約数の個数: 64

約数和(自身を含む): 69732000

約数和(自身を除く): 41441000

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 25, 38, 40, 50, 76, 95, 100, 125, 152, 190, 200, 250, 380, 475, 500, 760, 950, 1000, 1489, 1900, 2375, 2978, 3800, 4750, 5956, 7445, 9500, 11912, 14890, 19000, 28291, 29780, 37225, 56582, 59560, 74450, 113164, 141455, 148900, 186125, 226328, 282910, 297800, 372250, 565820, 707275, 744500, 1131640, 1414550, 1489000, 2829100, 3536375, 5658200, 7072750, 14145500, 28291000]

約数ペア:

[(1, 28291000), (2, 14145500), (4, 7072750), (5, 5658200), (8, 3536375), (10, 2829100), (19, 1489000), (20, 1414550), (25, 1131640), (38, 744500), (40, 707275), (50, 565820), (76, 372250), (95, 297800), (100, 282910), (125, 226328), (152, 186125), (190, 148900), (200, 141455), (250, 113164), (380, 74450), (475, 59560), (500, 56582), (760, 37225), (950, 29780), (1000, 28291), (1489, 19000), (1900, 14890), (2375, 11912), (2978, 9500), (3800, 7445), (4750, 5956)]