20138454065

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{647}}^1\times {\mathrm{19273}}^1$

素因数の和:19961

約数の個数: 32

約数和(自身を含む): 26977432320

約数和(自身を除く): 6838978255

約数列:

[1, 5, 17, 19, 85, 95, 323, 647, 1615, 3235, 10999, 12293, 19273, 54995, 61465, 96365, 208981, 327641, 366187, 1044905, 1638205, 1830935, 6225179, 12469631, 31125895, 62348155, 211983727, 236922989, 1059918635, 1184614945, 4027690813, 20138454065]

約数ペア:

[(1, 20138454065), (5, 4027690813), (17, 1184614945), (19, 1059918635), (85, 236922989), (95, 211983727), (323, 62348155), (647, 31125895), (1615, 12469631), (3235, 6225179), (10999, 1830935), (12293, 1638205), (19273, 1044905), (54995, 366187), (61465, 327641), (96365, 208981)]