28721628

素因数分解:

$2^2\times 3^5\times {\mathrm{13}}^1\times {\mathrm{2273}}^1$

素因数の和:2305

約数の個数: 72

約数和(自身を含む): 81118128

約数和(自身を除く): 52396500

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 27, 36, 39, 52, 54, 78, 81, 108, 117, 156, 162, 234, 243, 324, 351, 468, 486, 702, 972, 1053, 1404, 2106, 2273, 3159, 4212, 4546, 6318, 6819, 9092, 12636, 13638, 20457, 27276, 29549, 40914, 59098, 61371, 81828, 88647, 118196, 122742, 177294, 184113, 245484, 265941, 354588, 368226, 531882, 552339, 736452, 797823, 1063764, 1104678, 1595646, 2209356, 2393469, 3191292, 4786938, 7180407, 9573876, 14360814, 28721628]

約数ペア:

[(1, 28721628), (2, 14360814), (3, 9573876), (4, 7180407), (6, 4786938), (9, 3191292), (12, 2393469), (13, 2209356), (18, 1595646), (26, 1104678), (27, 1063764), (36, 797823), (39, 736452), (52, 552339), (54, 531882), (78, 368226), (81, 354588), (108, 265941), (117, 245484), (156, 184113), (162, 177294), (234, 122742), (243, 118196), (324, 88647), (351, 81828), (468, 61371), (486, 59098), (702, 40914), (972, 29549), (1053, 27276), (1404, 20457), (2106, 13638), (2273, 12636), (3159, 9092), (4212, 6819), (4546, 6318)]