890292500

素因数分解:

$2^2\times 5^4\times {\mathrm{19}}^1\times {\mathrm{18743}}^1$

素因数の和:18786

約数の個数: 60

約数和(自身を含む): 2049468960

約数和(自身を除く): 1159176460

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 50, 76, 95, 100, 125, 190, 250, 380, 475, 500, 625, 950, 1250, 1900, 2375, 2500, 4750, 9500, 11875, 18743, 23750, 37486, 47500, 74972, 93715, 187430, 356117, 374860, 468575, 712234, 937150, 1424468, 1780585, 1874300, 2342875, 3561170, 4685750, 7122340, 8902925, 9371500, 11714375, 17805850, 23428750, 35611700, 44514625, 46857500, 89029250, 178058500, 222573125, 445146250, 890292500]

約数ペア:

[(1, 890292500), (2, 445146250), (4, 222573125), (5, 178058500), (10, 89029250), (19, 46857500), (20, 44514625), (25, 35611700), (38, 23428750), (50, 17805850), (76, 11714375), (95, 9371500), (100, 8902925), (125, 7122340), (190, 4685750), (250, 3561170), (380, 2342875), (475, 1874300), (500, 1780585), (625, 1424468), (950, 937150), (1250, 712234), (1900, 468575), (2375, 374860), (2500, 356117), (4750, 187430), (9500, 93715), (11875, 74972), (18743, 47500), (23750, 37486)]