19695416

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{149}}^1$

素因数の和:240

約数の個数: 64

約数和(自身を含む): 42336000

約数和(自身を除く): 22640584

約数列:

[1, 2, 4, 8, 13, 26, 31, 41, 52, 62, 82, 104, 124, 149, 164, 248, 298, 328, 403, 533, 596, 806, 1066, 1192, 1271, 1612, 1937, 2132, 2542, 3224, 3874, 4264, 4619, 5084, 6109, 7748, 9238, 10168, 12218, 15496, 16523, 18476, 24436, 33046, 36952, 48872, 60047, 66092, 79417, 120094, 132184, 158834, 189379, 240188, 317668, 378758, 480376, 635336, 757516, 1515032, 2461927, 4923854, 9847708, 19695416]

約数ペア:

[(1, 19695416), (2, 9847708), (4, 4923854), (8, 2461927), (13, 1515032), (26, 757516), (31, 635336), (41, 480376), (52, 378758), (62, 317668), (82, 240188), (104, 189379), (124, 158834), (149, 132184), (164, 120094), (248, 79417), (298, 66092), (328, 60047), (403, 48872), (533, 36952), (596, 33046), (806, 24436), (1066, 18476), (1192, 16523), (1271, 15496), (1612, 12218), (1937, 10168), (2132, 9238), (2542, 7748), (3224, 6109), (3874, 5084), (4264, 4619)]