80138720

素因数分解:

$2^5\times 5^1\times {\mathrm{31}}^1\times {\mathrm{107}}^1\times {\mathrm{151}}^1$

素因数の和:304

約数の個数: 96

約数和(自身を含む): 198567936

約数和(自身を除く): 118429216

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 80, 107, 124, 151, 155, 160, 214, 248, 302, 310, 428, 496, 535, 604, 620, 755, 856, 992, 1070, 1208, 1240, 1510, 1712, 2140, 2416, 2480, 3020, 3317, 3424, 4280, 4681, 4832, 4960, 6040, 6634, 8560, 9362, 12080, 13268, 16157, 16585, 17120, 18724, 23405, 24160, 26536, 32314, 33170, 37448, 46810, 53072, 64628, 66340, 74896, 80785, 93620, 106144, 129256, 132680, 149792, 161570, 187240, 258512, 265360, 323140, 374480, 500867, 517024, 530720, 646280, 748960, 1001734, 1292560, 2003468, 2504335, 2585120, 4006936, 5008670, 8013872, 10017340, 16027744, 20034680, 40069360, 80138720]

約数ペア:

[(1, 80138720), (2, 40069360), (4, 20034680), (5, 16027744), (8, 10017340), (10, 8013872), (16, 5008670), (20, 4006936), (31, 2585120), (32, 2504335), (40, 2003468), (62, 1292560), (80, 1001734), (107, 748960), (124, 646280), (151, 530720), (155, 517024), (160, 500867), (214, 374480), (248, 323140), (302, 265360), (310, 258512), (428, 187240), (496, 161570), (535, 149792), (604, 132680), (620, 129256), (755, 106144), (856, 93620), (992, 80785), (1070, 74896), (1208, 66340), (1240, 64628), (1510, 53072), (1712, 46810), (2140, 37448), (2416, 33170), (2480, 32314), (3020, 26536), (3317, 24160), (3424, 23405), (4280, 18724), (4681, 17120), (4832, 16585), (4960, 16157), (6040, 13268), (6634, 12080), (8560, 9362)]