25665520

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{131}}^1$

素因数の和:254

約数の個数: 80

約数和(自身を含む): 62853120

約数和(自身を除く): 37187600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 79, 80, 124, 131, 155, 158, 248, 262, 310, 316, 395, 496, 524, 620, 632, 655, 790, 1048, 1240, 1264, 1310, 1580, 2096, 2449, 2480, 2620, 3160, 4061, 4898, 5240, 6320, 8122, 9796, 10349, 10480, 12245, 16244, 19592, 20305, 20698, 24490, 32488, 39184, 40610, 41396, 48980, 51745, 64976, 81220, 82792, 97960, 103490, 162440, 165584, 195920, 206980, 320819, 324880, 413960, 641638, 827920, 1283276, 1604095, 2566552, 3208190, 5133104, 6416380, 12832760, 25665520]

約数ペア:

[(1, 25665520), (2, 12832760), (4, 6416380), (5, 5133104), (8, 3208190), (10, 2566552), (16, 1604095), (20, 1283276), (31, 827920), (40, 641638), (62, 413960), (79, 324880), (80, 320819), (124, 206980), (131, 195920), (155, 165584), (158, 162440), (248, 103490), (262, 97960), (310, 82792), (316, 81220), (395, 64976), (496, 51745), (524, 48980), (620, 41396), (632, 40610), (655, 39184), (790, 32488), (1048, 24490), (1240, 20698), (1264, 20305), (1310, 19592), (1580, 16244), (2096, 12245), (2449, 10480), (2480, 10349), (2620, 9796), (3160, 8122), (4061, 6320), (4898, 5240)]