399291208760

素因数分解:

$2^3\times 5^1\times {\mathrm{67}}^1\times {\mathrm{113}}^1\times {\mathrm{1318489}}^1$

素因数の和:1318680

約数の個数: 64

約数和(自身を含む): 919884103200

約数和(自身を除く): 520592894440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 67, 113, 134, 226, 268, 335, 452, 536, 565, 670, 904, 1130, 1340, 2260, 2680, 4520, 7571, 15142, 30284, 37855, 60568, 75710, 151420, 302840, 1318489, 2636978, 5273956, 6592445, 10547912, 13184890, 26369780, 52739560, 88338763, 148989257, 176677526, 297978514, 353355052, 441693815, 595957028, 706710104, 744946285, 883387630, 1191914056, 1489892570, 1766775260, 2979785140, 3533550520, 5959570280, 9982280219, 19964560438, 39929120876, 49911401095, 79858241752, 99822802190, 199645604380, 399291208760]

約数ペア:

[(1, 399291208760), (2, 199645604380), (4, 99822802190), (5, 79858241752), (8, 49911401095), (10, 39929120876), (20, 19964560438), (40, 9982280219), (67, 5959570280), (113, 3533550520), (134, 2979785140), (226, 1766775260), (268, 1489892570), (335, 1191914056), (452, 883387630), (536, 744946285), (565, 706710104), (670, 595957028), (904, 441693815), (1130, 353355052), (1340, 297978514), (2260, 176677526), (2680, 148989257), (4520, 88338763), (7571, 52739560), (15142, 26369780), (30284, 13184890), (37855, 10547912), (60568, 6592445), (75710, 5273956), (151420, 2636978), (302840, 1318489)]