840684

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{317}}^1$

素因数の和:354

約数の個数: 48

約数和(自身を含む): 2243808

約数和(自身を除く): 1403124

約数列:

[1, 2, 3, 4, 6, 12, 13, 17, 26, 34, 39, 51, 52, 68, 78, 102, 156, 204, 221, 317, 442, 634, 663, 884, 951, 1268, 1326, 1902, 2652, 3804, 4121, 5389, 8242, 10778, 12363, 16167, 16484, 21556, 24726, 32334, 49452, 64668, 70057, 140114, 210171, 280228, 420342, 840684]

約数ペア:

[(1, 840684), (2, 420342), (3, 280228), (4, 210171), (6, 140114), (12, 70057), (13, 64668), (17, 49452), (26, 32334), (34, 24726), (39, 21556), (51, 16484), (52, 16167), (68, 12363), (78, 10778), (102, 8242), (156, 5389), (204, 4121), (221, 3804), (317, 2652), (442, 1902), (634, 1326), (663, 1268), (884, 951)]