686100636

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{21881}}^1$

素因数の和:21971

約数の個数: 72

約数和(自身を含む): 1895681424

約数和(自身を除く): 1209580788

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 67, 78, 117, 134, 156, 201, 234, 268, 402, 468, 603, 804, 871, 1206, 1742, 2412, 2613, 3484, 5226, 7839, 10452, 15678, 21881, 31356, 43762, 65643, 87524, 131286, 196929, 262572, 284453, 393858, 568906, 787716, 853359, 1137812, 1466027, 1706718, 2560077, 2932054, 3413436, 4398081, 5120154, 5864108, 8796162, 10240308, 13194243, 17592324, 19058351, 26388486, 38116702, 52776972, 57175053, 76233404, 114350106, 171525159, 228700212, 343050318, 686100636]

約数ペア:

[(1, 686100636), (2, 343050318), (3, 228700212), (4, 171525159), (6, 114350106), (9, 76233404), (12, 57175053), (13, 52776972), (18, 38116702), (26, 26388486), (36, 19058351), (39, 17592324), (52, 13194243), (67, 10240308), (78, 8796162), (117, 5864108), (134, 5120154), (156, 4398081), (201, 3413436), (234, 2932054), (268, 2560077), (402, 1706718), (468, 1466027), (603, 1137812), (804, 853359), (871, 787716), (1206, 568906), (1742, 393858), (2412, 284453), (2613, 262572), (3484, 196929), (5226, 131286), (7839, 87524), (10452, 65643), (15678, 43762), (21881, 31356)]