81642470

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{1229}}^1$

素因数の和:1329

約数の個数: 64

約数和(自身を含む): 183496320

約数和(自身を除く): 101853850

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 65, 70, 73, 91, 130, 146, 182, 365, 455, 511, 730, 910, 949, 1022, 1229, 1898, 2458, 2555, 4745, 5110, 6145, 6643, 8603, 9490, 12290, 13286, 15977, 17206, 31954, 33215, 43015, 66430, 79885, 86030, 89717, 111839, 159770, 179434, 223678, 448585, 559195, 628019, 897170, 1118390, 1166321, 1256038, 2332642, 3140095, 5831605, 6280190, 8164247, 11663210, 16328494, 40821235, 81642470]

約数ペア:

[(1, 81642470), (2, 40821235), (5, 16328494), (7, 11663210), (10, 8164247), (13, 6280190), (14, 5831605), (26, 3140095), (35, 2332642), (65, 1256038), (70, 1166321), (73, 1118390), (91, 897170), (130, 628019), (146, 559195), (182, 448585), (365, 223678), (455, 179434), (511, 159770), (730, 111839), (910, 89717), (949, 86030), (1022, 79885), (1229, 66430), (1898, 43015), (2458, 33215), (2555, 31954), (4745, 17206), (5110, 15977), (6145, 13286), (6643, 12290), (8603, 9490)]