42187500

素因数分解:

$2^2\times 3^3\times 5^8$

素因数の和:53

約数の個数: 108

約数和(自身を含む): 136718680

約数和(自身を除く): 94531180

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 25, 27, 30, 36, 45, 50, 54, 60, 75, 90, 100, 108, 125, 135, 150, 180, 225, 250, 270, 300, 375, 450, 500, 540, 625, 675, 750, 900, 1125, 1250, 1350, 1500, 1875, 2250, 2500, 2700, 3125, 3375, 3750, 4500, 5625, 6250, 6750, 7500, 9375, 11250, 12500, 13500, 15625, 16875, 18750, 22500, 28125, 31250, 33750, 37500, 46875, 56250, 62500, 67500, 78125, 84375, 93750, 112500, 140625, 156250, 168750, 187500, 234375, 281250, 312500, 337500, 390625, 421875, 468750, 562500, 703125, 781250, 843750, 937500, 1171875, 1406250, 1562500, 1687500, 2109375, 2343750, 2812500, 3515625, 4218750, 4687500, 7031250, 8437500, 10546875, 14062500, 21093750, 42187500]

約数ペア:

[(1, 42187500), (2, 21093750), (3, 14062500), (4, 10546875), (5, 8437500), (6, 7031250), (9, 4687500), (10, 4218750), (12, 3515625), (15, 2812500), (18, 2343750), (20, 2109375), (25, 1687500), (27, 1562500), (30, 1406250), (36, 1171875), (45, 937500), (50, 843750), (54, 781250), (60, 703125), (75, 562500), (90, 468750), (100, 421875), (108, 390625), (125, 337500), (135, 312500), (150, 281250), (180, 234375), (225, 187500), (250, 168750), (270, 156250), (300, 140625), (375, 112500), (450, 93750), (500, 84375), (540, 78125), (625, 67500), (675, 62500), (750, 56250), (900, 46875), (1125, 37500), (1250, 33750), (1350, 31250), (1500, 28125), (1875, 22500), (2250, 18750), (2500, 16875), (2700, 15625), (3125, 13500), (3375, 12500), (3750, 11250), (4500, 9375), (5625, 7500), (6250, 6750)]