199687500

素因数分解:

$2^2\times 3^2\times 5^7\times {\mathrm{71}}^1$

素因数の和:116

約数の個数: 144

約数和(自身を含む): 639842112

約数和(自身を除く): 440154612

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 25, 30, 36, 45, 50, 60, 71, 75, 90, 100, 125, 142, 150, 180, 213, 225, 250, 284, 300, 355, 375, 426, 450, 500, 625, 639, 710, 750, 852, 900, 1065, 1125, 1250, 1278, 1420, 1500, 1775, 1875, 2130, 2250, 2500, 2556, 3125, 3195, 3550, 3750, 4260, 4500, 5325, 5625, 6250, 6390, 7100, 7500, 8875, 9375, 10650, 11250, 12500, 12780, 15625, 15975, 17750, 18750, 21300, 22500, 26625, 28125, 31250, 31950, 35500, 37500, 44375, 46875, 53250, 56250, 62500, 63900, 78125, 79875, 88750, 93750, 106500, 112500, 133125, 140625, 156250, 159750, 177500, 187500, 221875, 234375, 266250, 281250, 312500, 319500, 399375, 443750, 468750, 532500, 562500, 665625, 703125, 798750, 887500, 937500, 1109375, 1331250, 1406250, 1597500, 1996875, 2218750, 2662500, 2812500, 3328125, 3993750, 4437500, 5546875, 6656250, 7987500, 9984375, 11093750, 13312500, 16640625, 19968750, 22187500, 33281250, 39937500, 49921875, 66562500, 99843750, 199687500]

約数ペア:

[(1, 199687500), (2, 99843750), (3, 66562500), (4, 49921875), (5, 39937500), (6, 33281250), (9, 22187500), (10, 19968750), (12, 16640625), (15, 13312500), (18, 11093750), (20, 9984375), (25, 7987500), (30, 6656250), (36, 5546875), (45, 4437500), (50, 3993750), (60, 3328125), (71, 2812500), (75, 2662500), (90, 2218750), (100, 1996875), (125, 1597500), (142, 1406250), (150, 1331250), (180, 1109375), (213, 937500), (225, 887500), (250, 798750), (284, 703125), (300, 665625), (355, 562500), (375, 532500), (426, 468750), (450, 443750), (500, 399375), (625, 319500), (639, 312500), (710, 281250), (750, 266250), (852, 234375), (900, 221875), (1065, 187500), (1125, 177500), (1250, 159750), (1278, 156250), (1420, 140625), (1500, 133125), (1775, 112500), (1875, 106500), (2130, 93750), (2250, 88750), (2500, 79875), (2556, 78125), (3125, 63900), (3195, 62500), (3550, 56250), (3750, 53250), (4260, 46875), (4500, 44375), (5325, 37500), (5625, 35500), (6250, 31950), (6390, 31250), (7100, 28125), (7500, 26625), (8875, 22500), (9375, 21300), (10650, 18750), (11250, 17750), (12500, 15975), (12780, 15625)]