28742740

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{227}}^1\times {\mathrm{487}}^1$

素因数の和:736

約数の個数: 48

約数和(自身を含む): 65423232

約数和(自身を除く): 36680492

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 227, 260, 454, 487, 908, 974, 1135, 1948, 2270, 2435, 2951, 4540, 4870, 5902, 6331, 9740, 11804, 12662, 14755, 25324, 29510, 31655, 59020, 63310, 110549, 126620, 221098, 442196, 552745, 1105490, 1437137, 2210980, 2874274, 5748548, 7185685, 14371370, 28742740]

約数ペア:

[(1, 28742740), (2, 14371370), (4, 7185685), (5, 5748548), (10, 2874274), (13, 2210980), (20, 1437137), (26, 1105490), (52, 552745), (65, 442196), (130, 221098), (227, 126620), (260, 110549), (454, 63310), (487, 59020), (908, 31655), (974, 29510), (1135, 25324), (1948, 14755), (2270, 12662), (2435, 11804), (2951, 9740), (4540, 6331), (4870, 5902)]