2798992120

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{79}}^1\times {\mathrm{20599}}^1$

素因数の和:20732

約数の個数: 64

約数和(自身を含む): 6526080000

約数和(自身を除く): 3727087880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 79, 86, 158, 172, 215, 316, 344, 395, 430, 632, 790, 860, 1580, 1720, 3160, 3397, 6794, 13588, 16985, 20599, 27176, 33970, 41198, 67940, 82396, 102995, 135880, 164792, 205990, 411980, 823960, 885757, 1627321, 1771514, 3254642, 3543028, 4428785, 6509284, 7086056, 8136605, 8857570, 13018568, 16273210, 17715140, 32546420, 35430280, 65092840, 69974803, 139949606, 279899212, 349874015, 559798424, 699748030, 1399496060, 2798992120]

約数ペア:

[(1, 2798992120), (2, 1399496060), (4, 699748030), (5, 559798424), (8, 349874015), (10, 279899212), (20, 139949606), (40, 69974803), (43, 65092840), (79, 35430280), (86, 32546420), (158, 17715140), (172, 16273210), (215, 13018568), (316, 8857570), (344, 8136605), (395, 7086056), (430, 6509284), (632, 4428785), (790, 3543028), (860, 3254642), (1580, 1771514), (1720, 1627321), (3160, 885757), (3397, 823960), (6794, 411980), (13588, 205990), (16985, 164792), (20599, 135880), (27176, 102995), (33970, 82396), (41198, 67940)]