64671250

素因数分解:

$2^1\times 5^4\times 7^1\times {\mathrm{19}}^1\times {\mathrm{389}}^1$

素因数の和:437

約数の個数: 80

約数和(自身を含む): 146203200

約数和(自身を除く): 81531950

約数列:

[1, 2, 5, 7, 10, 14, 19, 25, 35, 38, 50, 70, 95, 125, 133, 175, 190, 250, 266, 350, 389, 475, 625, 665, 778, 875, 950, 1250, 1330, 1750, 1945, 2375, 2723, 3325, 3890, 4375, 4750, 5446, 6650, 7391, 8750, 9725, 11875, 13615, 14782, 16625, 19450, 23750, 27230, 33250, 36955, 48625, 51737, 68075, 73910, 83125, 97250, 103474, 136150, 166250, 184775, 243125, 258685, 340375, 369550, 486250, 517370, 680750, 923875, 1293425, 1701875, 1847750, 2586850, 3403750, 4619375, 6467125, 9238750, 12934250, 32335625, 64671250]

約数ペア:

[(1, 64671250), (2, 32335625), (5, 12934250), (7, 9238750), (10, 6467125), (14, 4619375), (19, 3403750), (25, 2586850), (35, 1847750), (38, 1701875), (50, 1293425), (70, 923875), (95, 680750), (125, 517370), (133, 486250), (175, 369550), (190, 340375), (250, 258685), (266, 243125), (350, 184775), (389, 166250), (475, 136150), (625, 103474), (665, 97250), (778, 83125), (875, 73910), (950, 68075), (1250, 51737), (1330, 48625), (1750, 36955), (1945, 33250), (2375, 27230), (2723, 23750), (3325, 19450), (3890, 16625), (4375, 14782), (4750, 13615), (5446, 11875), (6650, 9725), (7391, 8750)]