80901320

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{1231}}^1$

素因数の和:1326

約数の個数: 64

約数和(自身を含む): 191600640

約数和(自身を除く): 110699320

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 53, 62, 106, 124, 155, 212, 248, 265, 310, 424, 530, 620, 1060, 1231, 1240, 1643, 2120, 2462, 3286, 4924, 6155, 6572, 8215, 9848, 12310, 13144, 16430, 24620, 32860, 38161, 49240, 65243, 65720, 76322, 130486, 152644, 190805, 260972, 305288, 326215, 381610, 521944, 652430, 763220, 1304860, 1526440, 2022533, 2609720, 4045066, 8090132, 10112665, 16180264, 20225330, 40450660, 80901320]

約数ペア:

[(1, 80901320), (2, 40450660), (4, 20225330), (5, 16180264), (8, 10112665), (10, 8090132), (20, 4045066), (31, 2609720), (40, 2022533), (53, 1526440), (62, 1304860), (106, 763220), (124, 652430), (155, 521944), (212, 381610), (248, 326215), (265, 305288), (310, 260972), (424, 190805), (530, 152644), (620, 130486), (1060, 76322), (1231, 65720), (1240, 65243), (1643, 49240), (2120, 38161), (2462, 32860), (3286, 24620), (4924, 16430), (6155, 13144), (6572, 12310), (8215, 9848)]