31655000

素因数分解:

$2^3\times 5^4\times {\mathrm{13}}^1\times {\mathrm{487}}^1$

素因数の和:526

約数の個数: 80

約数和(自身を含む): 80036880

約数和(自身を除く): 48381880

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 25, 26, 40, 50, 52, 65, 100, 104, 125, 130, 200, 250, 260, 325, 487, 500, 520, 625, 650, 974, 1000, 1250, 1300, 1625, 1948, 2435, 2500, 2600, 3250, 3896, 4870, 5000, 6331, 6500, 8125, 9740, 12175, 12662, 13000, 16250, 19480, 24350, 25324, 31655, 32500, 48700, 50648, 60875, 63310, 65000, 97400, 121750, 126620, 158275, 243500, 253240, 304375, 316550, 487000, 608750, 633100, 791375, 1217500, 1266200, 1582750, 2435000, 3165500, 3956875, 6331000, 7913750, 15827500, 31655000]

約数ペア:

[(1, 31655000), (2, 15827500), (4, 7913750), (5, 6331000), (8, 3956875), (10, 3165500), (13, 2435000), (20, 1582750), (25, 1266200), (26, 1217500), (40, 791375), (50, 633100), (52, 608750), (65, 487000), (100, 316550), (104, 304375), (125, 253240), (130, 243500), (200, 158275), (250, 126620), (260, 121750), (325, 97400), (487, 65000), (500, 63310), (520, 60875), (625, 50648), (650, 48700), (974, 32500), (1000, 31655), (1250, 25324), (1300, 24350), (1625, 19480), (1948, 16250), (2435, 13000), (2500, 12662), (2600, 12175), (3250, 9740), (3896, 8125), (4870, 6500), (5000, 6331)]