31242420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{509}}^1$

素因数の和:566

約数の個数: 144

約数和(自身を含む): 106928640

約数和(自身を除く): 75686220

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 31, 33, 36, 44, 45, 55, 60, 62, 66, 90, 93, 99, 110, 124, 132, 155, 165, 180, 186, 198, 220, 279, 310, 330, 341, 372, 396, 465, 495, 509, 558, 620, 660, 682, 930, 990, 1018, 1023, 1116, 1364, 1395, 1527, 1705, 1860, 1980, 2036, 2046, 2545, 2790, 3054, 3069, 3410, 4092, 4581, 5090, 5115, 5580, 5599, 6108, 6138, 6820, 7635, 9162, 10180, 10230, 11198, 12276, 15270, 15345, 15779, 16797, 18324, 20460, 22396, 22905, 27995, 30540, 30690, 31558, 33594, 45810, 47337, 50391, 55990, 61380, 63116, 67188, 78895, 83985, 91620, 94674, 100782, 111980, 142011, 157790, 167970, 173569, 189348, 201564, 236685, 251955, 284022, 315580, 335940, 347138, 473370, 503910, 520707, 568044, 694276, 710055, 867845, 946740, 1007820, 1041414, 1420110, 1562121, 1735690, 2082828, 2603535, 2840220, 3124242, 3471380, 5207070, 6248484, 7810605, 10414140, 15621210, 31242420]

約数ペア:

[(1, 31242420), (2, 15621210), (3, 10414140), (4, 7810605), (5, 6248484), (6, 5207070), (9, 3471380), (10, 3124242), (11, 2840220), (12, 2603535), (15, 2082828), (18, 1735690), (20, 1562121), (22, 1420110), (30, 1041414), (31, 1007820), (33, 946740), (36, 867845), (44, 710055), (45, 694276), (55, 568044), (60, 520707), (62, 503910), (66, 473370), (90, 347138), (93, 335940), (99, 315580), (110, 284022), (124, 251955), (132, 236685), (155, 201564), (165, 189348), (180, 173569), (186, 167970), (198, 157790), (220, 142011), (279, 111980), (310, 100782), (330, 94674), (341, 91620), (372, 83985), (396, 78895), (465, 67188), (495, 63116), (509, 61380), (558, 55990), (620, 50391), (660, 47337), (682, 45810), (930, 33594), (990, 31558), (1018, 30690), (1023, 30540), (1116, 27995), (1364, 22905), (1395, 22396), (1527, 20460), (1705, 18324), (1860, 16797), (1980, 15779), (2036, 15345), (2046, 15270), (2545, 12276), (2790, 11198), (3054, 10230), (3069, 10180), (3410, 9162), (4092, 7635), (4581, 6820), (5090, 6138), (5115, 6108), (5580, 5599)]