8020870

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{79}}^1$

素因数の和:181

約数の個数: 64

約数和(自身を含む): 17418240

約数和(自身を除く): 9397370

約数列:

[1, 2, 5, 10, 11, 13, 22, 26, 55, 65, 71, 79, 110, 130, 142, 143, 158, 286, 355, 395, 710, 715, 781, 790, 869, 923, 1027, 1430, 1562, 1738, 1846, 2054, 3905, 4345, 4615, 5135, 5609, 7810, 8690, 9230, 10153, 10270, 11218, 11297, 20306, 22594, 28045, 50765, 56090, 56485, 61699, 72917, 101530, 112970, 123398, 145834, 308495, 364585, 616990, 729170, 802087, 1604174, 4010435, 8020870]

約数ペア:

[(1, 8020870), (2, 4010435), (5, 1604174), (10, 802087), (11, 729170), (13, 616990), (22, 364585), (26, 308495), (55, 145834), (65, 123398), (71, 112970), (79, 101530), (110, 72917), (130, 61699), (142, 56485), (143, 56090), (158, 50765), (286, 28045), (355, 22594), (395, 20306), (710, 11297), (715, 11218), (781, 10270), (790, 10153), (869, 9230), (923, 8690), (1027, 7810), (1430, 5609), (1562, 5135), (1738, 4615), (1846, 4345), (2054, 3905)]