31411750

素因数分解:

$2^1\times 5^3\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{389}}^1$

素因数の和:442

約数の個数: 64

約数和(自身を含む): 65707200

約数和(自身を除く): 34295450

約数列:

[1, 2, 5, 10, 17, 19, 25, 34, 38, 50, 85, 95, 125, 170, 190, 250, 323, 389, 425, 475, 646, 778, 850, 950, 1615, 1945, 2125, 2375, 3230, 3890, 4250, 4750, 6613, 7391, 8075, 9725, 13226, 14782, 16150, 19450, 33065, 36955, 40375, 48625, 66130, 73910, 80750, 97250, 125647, 165325, 184775, 251294, 330650, 369550, 628235, 826625, 923875, 1256470, 1653250, 1847750, 3141175, 6282350, 15705875, 31411750]

約数ペア:

[(1, 31411750), (2, 15705875), (5, 6282350), (10, 3141175), (17, 1847750), (19, 1653250), (25, 1256470), (34, 923875), (38, 826625), (50, 628235), (85, 369550), (95, 330650), (125, 251294), (170, 184775), (190, 165325), (250, 125647), (323, 97250), (389, 80750), (425, 73910), (475, 66130), (646, 48625), (778, 40375), (850, 36955), (950, 33065), (1615, 19450), (1945, 16150), (2125, 14782), (2375, 13226), (3230, 9725), (3890, 8075), (4250, 7391), (4750, 6613)]