81607864

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{109}}^1\times {\mathrm{313}}^1$

素因数の和:464

約数の個数: 64

約数和(自身を含む): 174081600

約数和(自身を除く): 92473736

約数列:

[1, 2, 4, 8, 13, 23, 26, 46, 52, 92, 104, 109, 184, 218, 299, 313, 436, 598, 626, 872, 1196, 1252, 1417, 2392, 2504, 2507, 2834, 4069, 5014, 5668, 7199, 8138, 10028, 11336, 14398, 16276, 20056, 28796, 32552, 32591, 34117, 57592, 65182, 68234, 93587, 130364, 136468, 187174, 260728, 272936, 374348, 443521, 748696, 784691, 887042, 1569382, 1774084, 3138764, 3548168, 6277528, 10200983, 20401966, 40803932, 81607864]

約数ペア:

[(1, 81607864), (2, 40803932), (4, 20401966), (8, 10200983), (13, 6277528), (23, 3548168), (26, 3138764), (46, 1774084), (52, 1569382), (92, 887042), (104, 784691), (109, 748696), (184, 443521), (218, 374348), (299, 272936), (313, 260728), (436, 187174), (598, 136468), (626, 130364), (872, 93587), (1196, 68234), (1252, 65182), (1417, 57592), (2392, 34117), (2504, 32591), (2507, 32552), (2834, 28796), (4069, 20056), (5014, 16276), (5668, 14398), (7199, 11336), (8138, 10028)]