39378820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{311}}^1\times {\mathrm{487}}^1$

素因数の和:820

約数の個数: 48

約数和(自身を含む): 89526528

約数和(自身を除く): 50147708

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 311, 487, 622, 974, 1244, 1555, 1948, 2435, 3110, 4043, 4870, 6220, 6331, 8086, 9740, 12662, 16172, 20215, 25324, 31655, 40430, 63310, 80860, 126620, 151457, 302914, 605828, 757285, 1514570, 1968941, 3029140, 3937882, 7875764, 9844705, 19689410, 39378820]

約数ペア:

[(1, 39378820), (2, 19689410), (4, 9844705), (5, 7875764), (10, 3937882), (13, 3029140), (20, 1968941), (26, 1514570), (52, 757285), (65, 605828), (130, 302914), (260, 151457), (311, 126620), (487, 80860), (622, 63310), (974, 40430), (1244, 31655), (1555, 25324), (1948, 20215), (2435, 16172), (3110, 12662), (4043, 9740), (4870, 8086), (6220, 6331)]