28271412

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{193}}^1\times {\mathrm{313}}^1$

素因数の和:529

約数の個数: 72

約数和(自身を含む): 77606984

約数和(自身を除く): 49335572

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 78, 117, 156, 193, 234, 313, 386, 468, 579, 626, 772, 939, 1158, 1252, 1737, 1878, 2316, 2509, 2817, 3474, 3756, 4069, 5018, 5634, 6948, 7527, 8138, 10036, 11268, 12207, 15054, 16276, 22581, 24414, 30108, 36621, 45162, 48828, 60409, 73242, 90324, 120818, 146484, 181227, 241636, 362454, 543681, 724908, 785317, 1087362, 1570634, 2174724, 2355951, 3141268, 4711902, 7067853, 9423804, 14135706, 28271412]

約数ペア:

[(1, 28271412), (2, 14135706), (3, 9423804), (4, 7067853), (6, 4711902), (9, 3141268), (12, 2355951), (13, 2174724), (18, 1570634), (26, 1087362), (36, 785317), (39, 724908), (52, 543681), (78, 362454), (117, 241636), (156, 181227), (193, 146484), (234, 120818), (313, 90324), (386, 73242), (468, 60409), (579, 48828), (626, 45162), (772, 36621), (939, 30108), (1158, 24414), (1252, 22581), (1737, 16276), (1878, 15054), (2316, 12207), (2509, 11268), (2817, 10036), (3474, 8138), (3756, 7527), (4069, 6948), (5018, 5634)]