19961707984

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{5077}}^1\times {\mathrm{7927}}^1$

素因数の和:13043

約数の個数: 40

約数和(自身を含む): 39936316928

約数和(自身を除く): 19974608944

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 496, 5077, 7927, 10154, 15854, 20308, 31708, 40616, 63416, 81232, 126832, 157387, 245737, 314774, 491474, 629548, 982948, 1259096, 1965896, 2518192, 3931792, 40245379, 80490758, 160981516, 321963032, 643926064, 1247606749, 2495213498, 4990426996, 9980853992, 19961707984]

約数ペア:

[(1, 19961707984), (2, 9980853992), (4, 4990426996), (8, 2495213498), (16, 1247606749), (31, 643926064), (62, 321963032), (124, 160981516), (248, 80490758), (496, 40245379), (5077, 3931792), (7927, 2518192), (10154, 1965896), (15854, 1259096), (20308, 982948), (31708, 629548), (40616, 491474), (63416, 314774), (81232, 245737), (126832, 157387)]