391489776715

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{487}}^1\times {\mathrm{2543}}^1\times {\mathrm{3719}}^1$

素因数の和:6771

約数の個数: 32

約数和(自身を含む): 498773790720

約数和(自身を除く): 107284014005

約数列:

[1, 5, 17, 85, 487, 2435, 2543, 3719, 8279, 12715, 18595, 41395, 43231, 63223, 216155, 316115, 1238441, 1811153, 6192205, 9055765, 9457417, 21053497, 30789601, 47287085, 105267485, 153948005, 160776089, 803880445, 4605762079, 23028810395, 78297955343, 391489776715]

約数ペア:

[(1, 391489776715), (5, 78297955343), (17, 23028810395), (85, 4605762079), (487, 803880445), (2435, 160776089), (2543, 153948005), (3719, 105267485), (8279, 47287085), (12715, 30789601), (18595, 21053497), (41395, 9457417), (43231, 9055765), (63223, 6192205), (216155, 1811153), (316115, 1238441)]