81688640

素因数分解:

$2^6\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{1009}}^1$

素因数の和:1060

約数の個数: 112

約数和(自身を含む): 221650560

約数和(自身を除く): 139961920

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 23, 32, 40, 44, 46, 55, 64, 80, 88, 92, 110, 115, 160, 176, 184, 220, 230, 253, 320, 352, 368, 440, 460, 506, 704, 736, 880, 920, 1009, 1012, 1265, 1472, 1760, 1840, 2018, 2024, 2530, 3520, 3680, 4036, 4048, 5045, 5060, 7360, 8072, 8096, 10090, 10120, 11099, 16144, 16192, 20180, 20240, 22198, 23207, 32288, 40360, 40480, 44396, 46414, 55495, 64576, 80720, 80960, 88792, 92828, 110990, 116035, 161440, 177584, 185656, 221980, 232070, 255277, 322880, 355168, 371312, 443960, 464140, 510554, 710336, 742624, 887920, 928280, 1021108, 1276385, 1485248, 1775840, 1856560, 2042216, 2552770, 3551680, 3713120, 4084432, 5105540, 7426240, 8168864, 10211080, 16337728, 20422160, 40844320, 81688640]

約数ペア:

[(1, 81688640), (2, 40844320), (4, 20422160), (5, 16337728), (8, 10211080), (10, 8168864), (11, 7426240), (16, 5105540), (20, 4084432), (22, 3713120), (23, 3551680), (32, 2552770), (40, 2042216), (44, 1856560), (46, 1775840), (55, 1485248), (64, 1276385), (80, 1021108), (88, 928280), (92, 887920), (110, 742624), (115, 710336), (160, 510554), (176, 464140), (184, 443960), (220, 371312), (230, 355168), (253, 322880), (320, 255277), (352, 232070), (368, 221980), (440, 185656), (460, 177584), (506, 161440), (704, 116035), (736, 110990), (880, 92828), (920, 88792), (1009, 80960), (1012, 80720), (1265, 64576), (1472, 55495), (1760, 46414), (1840, 44396), (2018, 40480), (2024, 40360), (2530, 32288), (3520, 23207), (3680, 22198), (4036, 20240), (4048, 20180), (5045, 16192), (5060, 16144), (7360, 11099), (8072, 10120), (8096, 10090)]