78907878

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{199}}^1\times {\mathrm{1049}}^1$

素因数の和:1266

約数の個数: 64

約数和(自身を含む): 201600000

約数和(自身を除く): 122692122

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 126, 189, 199, 378, 398, 597, 1049, 1194, 1393, 1791, 2098, 2786, 3147, 3582, 4179, 5373, 6294, 7343, 8358, 9441, 10746, 12537, 14686, 18882, 22029, 25074, 28323, 37611, 44058, 56646, 66087, 75222, 132174, 198261, 208751, 396522, 417502, 626253, 1252506, 1461257, 1878759, 2922514, 3757518, 4383771, 5636277, 8767542, 11272554, 13151313, 26302626, 39453939, 78907878]

約数ペア:

[(1, 78907878), (2, 39453939), (3, 26302626), (6, 13151313), (7, 11272554), (9, 8767542), (14, 5636277), (18, 4383771), (21, 3757518), (27, 2922514), (42, 1878759), (54, 1461257), (63, 1252506), (126, 626253), (189, 417502), (199, 396522), (378, 208751), (398, 198261), (597, 132174), (1049, 75222), (1194, 66087), (1393, 56646), (1791, 44058), (2098, 37611), (2786, 28323), (3147, 25074), (3582, 22029), (4179, 18882), (5373, 14686), (6294, 12537), (7343, 10746), (8358, 9441)]