31561712

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{409}}^1$

素因数の和:490

約数の個数: 80

約数和(自身を含む): 76870080

約数和(自身を除く): 45308368

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 52, 53, 56, 91, 104, 106, 112, 182, 208, 212, 364, 371, 409, 424, 689, 728, 742, 818, 848, 1378, 1456, 1484, 1636, 2756, 2863, 2968, 3272, 4823, 5317, 5512, 5726, 5936, 6544, 9646, 10634, 11024, 11452, 19292, 21268, 21677, 22904, 37219, 38584, 42536, 43354, 45808, 74438, 77168, 85072, 86708, 148876, 151739, 173416, 281801, 297752, 303478, 346832, 563602, 595504, 606956, 1127204, 1213912, 1972607, 2254408, 2427824, 3945214, 4508816, 7890428, 15780856, 31561712]

約数ペア:

[(1, 31561712), (2, 15780856), (4, 7890428), (7, 4508816), (8, 3945214), (13, 2427824), (14, 2254408), (16, 1972607), (26, 1213912), (28, 1127204), (52, 606956), (53, 595504), (56, 563602), (91, 346832), (104, 303478), (106, 297752), (112, 281801), (182, 173416), (208, 151739), (212, 148876), (364, 86708), (371, 85072), (409, 77168), (424, 74438), (689, 45808), (728, 43354), (742, 42536), (818, 38584), (848, 37219), (1378, 22904), (1456, 21677), (1484, 21268), (1636, 19292), (2756, 11452), (2863, 11024), (2968, 10634), (3272, 9646), (4823, 6544), (5317, 5936), (5512, 5726)]