51331040

素因数分解:

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

素因数の和:256

約数の個数: 96

約数和(自身を含む): 127733760

約数和(自身を除く): 76402720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 79, 80, 124, 131, 155, 158, 160, 248, 262, 310, 316, 395, 496, 524, 620, 632, 655, 790, 992, 1048, 1240, 1264, 1310, 1580, 2096, 2449, 2480, 2528, 2620, 3160, 4061, 4192, 4898, 4960, 5240, 6320, 8122, 9796, 10349, 10480, 12245, 12640, 16244, 19592, 20305, 20698, 20960, 24490, 32488, 39184, 40610, 41396, 48980, 51745, 64976, 78368, 81220, 82792, 97960, 103490, 129952, 162440, 165584, 195920, 206980, 320819, 324880, 331168, 391840, 413960, 641638, 649760, 827920, 1283276, 1604095, 1655840, 2566552, 3208190, 5133104, 6416380, 10266208, 12832760, 25665520, 51331040]

約数ペア:

[(1, 51331040), (2, 25665520), (4, 12832760), (5, 10266208), (8, 6416380), (10, 5133104), (16, 3208190), (20, 2566552), (31, 1655840), (32, 1604095), (40, 1283276), (62, 827920), (79, 649760), (80, 641638), (124, 413960), (131, 391840), (155, 331168), (158, 324880), (160, 320819), (248, 206980), (262, 195920), (310, 165584), (316, 162440), (395, 129952), (496, 103490), (524, 97960), (620, 82792), (632, 81220), (655, 78368), (790, 64976), (992, 51745), (1048, 48980), (1240, 41396), (1264, 40610), (1310, 39184), (1580, 32488), (2096, 24490), (2449, 20960), (2480, 20698), (2528, 20305), (2620, 19592), (3160, 16244), (4061, 12640), (4192, 12245), (4898, 10480), (4960, 10349), (5240, 9796), (6320, 8122)]