87085820

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{31}}^2\times {\mathrm{197}}^1$

素因数の和:291

約数の個数: 72

約数和(自身を含む): 198186912

約数和(自身を除く): 111101092

約数列:

[1, 2, 4, 5, 10, 20, 23, 31, 46, 62, 92, 115, 124, 155, 197, 230, 310, 394, 460, 620, 713, 788, 961, 985, 1426, 1922, 1970, 2852, 3565, 3844, 3940, 4531, 4805, 6107, 7130, 9062, 9610, 12214, 14260, 18124, 19220, 22103, 22655, 24428, 30535, 44206, 45310, 61070, 88412, 90620, 110515, 122140, 140461, 189317, 221030, 280922, 378634, 442060, 561844, 702305, 757268, 946585, 1404610, 1893170, 2809220, 3786340, 4354291, 8708582, 17417164, 21771455, 43542910, 87085820]

約数ペア:

[(1, 87085820), (2, 43542910), (4, 21771455), (5, 17417164), (10, 8708582), (20, 4354291), (23, 3786340), (31, 2809220), (46, 1893170), (62, 1404610), (92, 946585), (115, 757268), (124, 702305), (155, 561844), (197, 442060), (230, 378634), (310, 280922), (394, 221030), (460, 189317), (620, 140461), (713, 122140), (788, 110515), (961, 90620), (985, 88412), (1426, 61070), (1922, 45310), (1970, 44206), (2852, 30535), (3565, 24428), (3844, 22655), (3940, 22103), (4531, 19220), (4805, 18124), (6107, 14260), (7130, 12214), (9062, 9610)]