31165540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{167}}^1$

素因数の和:257

約数の個数: 96

約数和(自身を含む): 79478784

約数和(自身を除く): 48313244

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 43, 62, 70, 86, 124, 140, 155, 167, 172, 215, 217, 301, 310, 334, 430, 434, 602, 620, 668, 835, 860, 868, 1085, 1169, 1204, 1333, 1505, 1670, 2170, 2338, 2666, 3010, 3340, 4340, 4676, 5177, 5332, 5845, 6020, 6665, 7181, 9331, 10354, 11690, 13330, 14362, 18662, 20708, 23380, 25885, 26660, 28724, 35905, 36239, 37324, 46655, 50267, 51770, 71810, 72478, 93310, 100534, 103540, 143620, 144956, 181195, 186620, 201068, 222611, 251335, 362390, 445222, 502670, 724780, 890444, 1005340, 1113055, 1558277, 2226110, 3116554, 4452220, 6233108, 7791385, 15582770, 31165540]

約数ペア:

[(1, 31165540), (2, 15582770), (4, 7791385), (5, 6233108), (7, 4452220), (10, 3116554), (14, 2226110), (20, 1558277), (28, 1113055), (31, 1005340), (35, 890444), (43, 724780), (62, 502670), (70, 445222), (86, 362390), (124, 251335), (140, 222611), (155, 201068), (167, 186620), (172, 181195), (215, 144956), (217, 143620), (301, 103540), (310, 100534), (334, 93310), (430, 72478), (434, 71810), (602, 51770), (620, 50267), (668, 46655), (835, 37324), (860, 36239), (868, 35905), (1085, 28724), (1169, 26660), (1204, 25885), (1333, 23380), (1505, 20708), (1670, 18662), (2170, 14362), (2338, 13330), (2666, 11690), (3010, 10354), (3340, 9331), (4340, 7181), (4676, 6665), (5177, 6020), (5332, 5845)]