81977520

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{14851}}^1$

素因数の和:14890

約数の個数: 80

約数和(自身を含む): 265197312

約数和(自身を除く): 183219792

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 23, 24, 30, 40, 46, 48, 60, 69, 80, 92, 115, 120, 138, 184, 230, 240, 276, 345, 368, 460, 552, 690, 920, 1104, 1380, 1840, 2760, 5520, 14851, 29702, 44553, 59404, 74255, 89106, 118808, 148510, 178212, 222765, 237616, 297020, 341573, 356424, 445530, 594040, 683146, 712848, 891060, 1024719, 1188080, 1366292, 1707865, 1782120, 2049438, 2732584, 3415730, 3564240, 4098876, 5123595, 5465168, 6831460, 8197752, 10247190, 13662920, 16395504, 20494380, 27325840, 40988760, 81977520]

約数ペア:

[(1, 81977520), (2, 40988760), (3, 27325840), (4, 20494380), (5, 16395504), (6, 13662920), (8, 10247190), (10, 8197752), (12, 6831460), (15, 5465168), (16, 5123595), (20, 4098876), (23, 3564240), (24, 3415730), (30, 2732584), (40, 2049438), (46, 1782120), (48, 1707865), (60, 1366292), (69, 1188080), (80, 1024719), (92, 891060), (115, 712848), (120, 683146), (138, 594040), (184, 445530), (230, 356424), (240, 341573), (276, 297020), (345, 237616), (368, 222765), (460, 178212), (552, 148510), (690, 118808), (920, 89106), (1104, 74255), (1380, 59404), (1840, 44553), (2760, 29702), (5520, 14851)]