31390242

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{359}}^1$

素因数の和:455

約数の個数: 64

約数和(自身を含む): 72576000

約数和(自身を除く): 41185758

約数列:

[1, 2, 3, 6, 13, 19, 26, 38, 39, 57, 59, 78, 114, 118, 177, 247, 354, 359, 494, 718, 741, 767, 1077, 1121, 1482, 1534, 2154, 2242, 2301, 3363, 4602, 4667, 6726, 6821, 9334, 13642, 14001, 14573, 20463, 21181, 28002, 29146, 40926, 42362, 43719, 63543, 87438, 88673, 127086, 177346, 266019, 275353, 402439, 532038, 550706, 804878, 826059, 1207317, 1652118, 2414634, 5231707, 10463414, 15695121, 31390242]

約数ペア:

[(1, 31390242), (2, 15695121), (3, 10463414), (6, 5231707), (13, 2414634), (19, 1652118), (26, 1207317), (38, 826059), (39, 804878), (57, 550706), (59, 532038), (78, 402439), (114, 275353), (118, 266019), (177, 177346), (247, 127086), (354, 88673), (359, 87438), (494, 63543), (718, 43719), (741, 42362), (767, 40926), (1077, 29146), (1121, 28002), (1482, 21181), (1534, 20463), (2154, 14573), (2242, 14001), (2301, 13642), (3363, 9334), (4602, 6821), (4667, 6726)]