16250000

素因数分解:

$2^4\times 5^7\times {\mathrm{13}}^1$

素因数の和:56

約数の個数: 80

約数和(自身を含む): 42382704

約数和(自身を除く): 26132704

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 40, 50, 52, 65, 80, 100, 104, 125, 130, 200, 208, 250, 260, 325, 400, 500, 520, 625, 650, 1000, 1040, 1250, 1300, 1625, 2000, 2500, 2600, 3125, 3250, 5000, 5200, 6250, 6500, 8125, 10000, 12500, 13000, 15625, 16250, 25000, 26000, 31250, 32500, 40625, 50000, 62500, 65000, 78125, 81250, 125000, 130000, 156250, 162500, 203125, 250000, 312500, 325000, 406250, 625000, 650000, 812500, 1015625, 1250000, 1625000, 2031250, 3250000, 4062500, 8125000, 16250000]

約数ペア:

[(1, 16250000), (2, 8125000), (4, 4062500), (5, 3250000), (8, 2031250), (10, 1625000), (13, 1250000), (16, 1015625), (20, 812500), (25, 650000), (26, 625000), (40, 406250), (50, 325000), (52, 312500), (65, 250000), (80, 203125), (100, 162500), (104, 156250), (125, 130000), (130, 125000), (200, 81250), (208, 78125), (250, 65000), (260, 62500), (325, 50000), (400, 40625), (500, 32500), (520, 31250), (625, 26000), (650, 25000), (1000, 16250), (1040, 15625), (1250, 13000), (1300, 12500), (1625, 10000), (2000, 8125), (2500, 6500), (2600, 6250), (3125, 5200), (3250, 5000)]