90243280

素因数分解:

$2^4\times 5^1\times {\mathrm{79}}^1\times {\mathrm{109}}^1\times {\mathrm{131}}^1$

素因数の和:332

約数の個数: 80

約数和(自身を含む): 216057600

約数和(自身を除く): 125814320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 79, 80, 109, 131, 158, 218, 262, 316, 395, 436, 524, 545, 632, 655, 790, 872, 1048, 1090, 1264, 1310, 1580, 1744, 2096, 2180, 2620, 3160, 4360, 5240, 6320, 8611, 8720, 10349, 10480, 14279, 17222, 20698, 28558, 34444, 41396, 43055, 51745, 57116, 68888, 71395, 82792, 86110, 103490, 114232, 137776, 142790, 165584, 172220, 206980, 228464, 285580, 344440, 413960, 571160, 688880, 827920, 1128041, 1142320, 2256082, 4512164, 5640205, 9024328, 11280410, 18048656, 22560820, 45121640, 90243280]

約数ペア:

[(1, 90243280), (2, 45121640), (4, 22560820), (5, 18048656), (8, 11280410), (10, 9024328), (16, 5640205), (20, 4512164), (40, 2256082), (79, 1142320), (80, 1128041), (109, 827920), (131, 688880), (158, 571160), (218, 413960), (262, 344440), (316, 285580), (395, 228464), (436, 206980), (524, 172220), (545, 165584), (632, 142790), (655, 137776), (790, 114232), (872, 103490), (1048, 86110), (1090, 82792), (1264, 71395), (1310, 68888), (1580, 57116), (1744, 51745), (2096, 43055), (2180, 41396), (2620, 34444), (3160, 28558), (4360, 20698), (5240, 17222), (6320, 14279), (8611, 10480), (8720, 10349)]