249990356

素因数分解:

$2^2\times 7^2\times {\mathrm{11}}^2\times {\mathrm{83}}^1\times {\mathrm{127}}^1$

素因数の和:250

約数の個数: 108

約数和(自身を含む): 570576384

約数和(自身を除く): 320586028

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 49, 77, 83, 98, 121, 127, 154, 166, 196, 242, 254, 308, 332, 484, 508, 539, 581, 847, 889, 913, 1078, 1162, 1397, 1694, 1778, 1826, 2156, 2324, 2794, 3388, 3556, 3652, 4067, 5588, 5929, 6223, 6391, 8134, 9779, 10043, 10541, 11858, 12446, 12782, 15367, 16268, 19558, 20086, 21082, 23716, 24892, 25564, 30734, 39116, 40172, 42164, 44737, 61468, 68453, 70301, 73787, 89474, 107569, 115951, 136906, 140602, 147574, 178948, 215138, 231902, 273812, 281204, 295148, 430276, 463804, 492107, 516509, 752983, 811657, 984214, 1033018, 1275461, 1505966, 1623314, 1968428, 2066036, 2550922, 3011932, 3246628, 5101844, 5681599, 8928227, 11363198, 17856454, 22726396, 35712908, 62497589, 124995178, 249990356]

約数ペア:

[(1, 249990356), (2, 124995178), (4, 62497589), (7, 35712908), (11, 22726396), (14, 17856454), (22, 11363198), (28, 8928227), (44, 5681599), (49, 5101844), (77, 3246628), (83, 3011932), (98, 2550922), (121, 2066036), (127, 1968428), (154, 1623314), (166, 1505966), (196, 1275461), (242, 1033018), (254, 984214), (308, 811657), (332, 752983), (484, 516509), (508, 492107), (539, 463804), (581, 430276), (847, 295148), (889, 281204), (913, 273812), (1078, 231902), (1162, 215138), (1397, 178948), (1694, 147574), (1778, 140602), (1826, 136906), (2156, 115951), (2324, 107569), (2794, 89474), (3388, 73787), (3556, 70301), (3652, 68453), (4067, 61468), (5588, 44737), (5929, 42164), (6223, 40172), (6391, 39116), (8134, 30734), (9779, 25564), (10043, 24892), (10541, 23716), (11858, 21082), (12446, 20086), (12782, 19558), (15367, 16268)]