80484680

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{1381}}^1$

素因数の和:1470

約数の個数: 64

約数和(自身を含む): 191047680

約数和(自身を除く): 110563000

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 47, 62, 94, 124, 155, 188, 235, 248, 310, 376, 470, 620, 940, 1240, 1381, 1457, 1880, 2762, 2914, 5524, 5828, 6905, 7285, 11048, 11656, 13810, 14570, 27620, 29140, 42811, 55240, 58280, 64907, 85622, 129814, 171244, 214055, 259628, 324535, 342488, 428110, 519256, 649070, 856220, 1298140, 1712440, 2012117, 2596280, 4024234, 8048468, 10060585, 16096936, 20121170, 40242340, 80484680]

約数ペア:

[(1, 80484680), (2, 40242340), (4, 20121170), (5, 16096936), (8, 10060585), (10, 8048468), (20, 4024234), (31, 2596280), (40, 2012117), (47, 1712440), (62, 1298140), (94, 856220), (124, 649070), (155, 519256), (188, 428110), (235, 342488), (248, 324535), (310, 259628), (376, 214055), (470, 171244), (620, 129814), (940, 85622), (1240, 64907), (1381, 58280), (1457, 55240), (1880, 42811), (2762, 29140), (2914, 27620), (5524, 14570), (5828, 13810), (6905, 11656), (7285, 11048)]