644080715

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{67}}^1\times {\mathrm{2153}}^1$

素因数の和:2291

約数の個数: 32

約数和(自身を含む): 843678720

約数和(自身を除く): 199598005

約数列:

[1, 5, 19, 47, 67, 95, 235, 335, 893, 1273, 2153, 3149, 4465, 6365, 10765, 15745, 40907, 59831, 101191, 144251, 204535, 299155, 505955, 721255, 1922629, 2740769, 6779797, 9613145, 13703845, 33898985, 128816143, 644080715]

約数ペア:

[(1, 644080715), (5, 128816143), (19, 33898985), (47, 13703845), (67, 9613145), (95, 6779797), (235, 2740769), (335, 1922629), (893, 721255), (1273, 505955), (2153, 299155), (3149, 204535), (4465, 144251), (6365, 101191), (10765, 59831), (15745, 40907)]