420220.0000000

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{31}}^1$

素因数の和:95

約数の個数: 72

約数和(自身を含む): 17751552

約数和(自身を除く): 8586123

約数列:

[1, 3, 7, 9, 13, 19, 21, 31, 39, 57, 63, 91, 93, 117, 133, 171, 217, 247, 273, 279, 361, 399, 403, 589, 651, 741, 819, 1083, 1197, 1209, 1729, 1767, 1953, 2223, 2527, 2821, 3249, 3627, 4123, 4693, 5187, 5301, 7581, 7657, 8463, 11191, 12369, 14079, 15561, 22743, 22971, 25389, 32851, 33573, 37107, 42237, 53599, 68913, 78337, 98553, 100719, 145483, 160797, 235011, 295659, 436449, 482391, 705033, 1018381, 1309347, 3055143, 9165429]

約数ペア:

[(1, 9165429), (3, 3055143), (7, 1309347), (9, 1018381), (13, 705033), (19, 482391), (21, 436449), (31, 295659), (39, 235011), (57, 160797), (63, 145483), (91, 100719), (93, 98553), (117, 78337), (133, 68913), (171, 53599), (217, 42237), (247, 37107), (273, 33573), (279, 32851), (361, 25389), (399, 22971), (403, 22743), (589, 15561), (651, 14079), (741, 12369), (819, 11191), (1083, 8463), (1197, 7657), (1209, 7581), (1729, 5301), (1767, 5187), (1953, 4693), (2223, 4123), (2527, 3627), (2821, 3249)]