81387642

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{83}}^1\times {\mathrm{631}}^1$

素因数の和:763

約数の個数: 64

約数和(自身を含む): 193665024

約数和(自身を除く): 112277382

約数列:

[1, 2, 3, 6, 7, 14, 21, 37, 42, 74, 83, 111, 166, 222, 249, 259, 498, 518, 581, 631, 777, 1162, 1262, 1554, 1743, 1893, 3071, 3486, 3786, 4417, 6142, 8834, 9213, 13251, 18426, 21497, 23347, 26502, 42994, 46694, 52373, 64491, 70041, 104746, 128982, 140082, 157119, 163429, 314238, 326858, 366611, 490287, 733222, 980574, 1099833, 1937801, 2199666, 3875602, 5813403, 11626806, 13564607, 27129214, 40693821, 81387642]

約数ペア:

[(1, 81387642), (2, 40693821), (3, 27129214), (6, 13564607), (7, 11626806), (14, 5813403), (21, 3875602), (37, 2199666), (42, 1937801), (74, 1099833), (83, 980574), (111, 733222), (166, 490287), (222, 366611), (249, 326858), (259, 314238), (498, 163429), (518, 157119), (581, 140082), (631, 128982), (777, 104746), (1162, 70041), (1262, 64491), (1554, 52373), (1743, 46694), (1893, 42994), (3071, 26502), (3486, 23347), (3786, 21497), (4417, 18426), (6142, 13251), (8834, 9213)]