201562500

素因数分解:

$2^2\times 3^1\times 5^8\times {\mathrm{43}}^1$

素因数の和:90

約数の個数: 108

約数和(自身を含む): 601562192

約数和(自身を除く): 399999692

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 25, 30, 43, 50, 60, 75, 86, 100, 125, 129, 150, 172, 215, 250, 258, 300, 375, 430, 500, 516, 625, 645, 750, 860, 1075, 1250, 1290, 1500, 1875, 2150, 2500, 2580, 3125, 3225, 3750, 4300, 5375, 6250, 6450, 7500, 9375, 10750, 12500, 12900, 15625, 16125, 18750, 21500, 26875, 31250, 32250, 37500, 46875, 53750, 62500, 64500, 78125, 80625, 93750, 107500, 134375, 156250, 161250, 187500, 234375, 268750, 312500, 322500, 390625, 403125, 468750, 537500, 671875, 781250, 806250, 937500, 1171875, 1343750, 1562500, 1612500, 2015625, 2343750, 2687500, 3359375, 4031250, 4687500, 6718750, 8062500, 10078125, 13437500, 16796875, 20156250, 33593750, 40312500, 50390625, 67187500, 100781250, 201562500]

約数ペア:

[(1, 201562500), (2, 100781250), (3, 67187500), (4, 50390625), (5, 40312500), (6, 33593750), (10, 20156250), (12, 16796875), (15, 13437500), (20, 10078125), (25, 8062500), (30, 6718750), (43, 4687500), (50, 4031250), (60, 3359375), (75, 2687500), (86, 2343750), (100, 2015625), (125, 1612500), (129, 1562500), (150, 1343750), (172, 1171875), (215, 937500), (250, 806250), (258, 781250), (300, 671875), (375, 537500), (430, 468750), (500, 403125), (516, 390625), (625, 322500), (645, 312500), (750, 268750), (860, 234375), (1075, 187500), (1250, 161250), (1290, 156250), (1500, 134375), (1875, 107500), (2150, 93750), (2500, 80625), (2580, 78125), (3125, 64500), (3225, 62500), (3750, 53750), (4300, 46875), (5375, 37500), (6250, 32250), (6450, 31250), (7500, 26875), (9375, 21500), (10750, 18750), (12500, 16125), (12900, 15625)]