86819778

素因数分解:

$2^1\times 3^2\times {\mathrm{19}}^2\times {\mathrm{31}}^1\times {\mathrm{431}}^1$

素因数の和:508

約数の個数: 72

約数和(自身を含む): 205410816

約数和(自身を除く): 118591038

約数列:

[1, 2, 3, 6, 9, 18, 19, 31, 38, 57, 62, 93, 114, 171, 186, 279, 342, 361, 431, 558, 589, 722, 862, 1083, 1178, 1293, 1767, 2166, 2586, 3249, 3534, 3879, 5301, 6498, 7758, 8189, 10602, 11191, 13361, 16378, 22382, 24567, 26722, 33573, 40083, 49134, 67146, 73701, 80166, 100719, 120249, 147402, 155591, 201438, 240498, 253859, 311182, 466773, 507718, 761577, 933546, 1400319, 1523154, 2284731, 2800638, 4569462, 4823321, 9646642, 14469963, 28939926, 43409889, 86819778]

約数ペア:

[(1, 86819778), (2, 43409889), (3, 28939926), (6, 14469963), (9, 9646642), (18, 4823321), (19, 4569462), (31, 2800638), (38, 2284731), (57, 1523154), (62, 1400319), (93, 933546), (114, 761577), (171, 507718), (186, 466773), (279, 311182), (342, 253859), (361, 240498), (431, 201438), (558, 155591), (589, 147402), (722, 120249), (862, 100719), (1083, 80166), (1178, 73701), (1293, 67146), (1767, 49134), (2166, 40083), (2586, 33573), (3249, 26722), (3534, 24567), (3879, 22382), (5301, 16378), (6498, 13361), (7758, 11191), (8189, 10602)]