20000274

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{353}}^1$

素因数の和:455

約数の個数: 64

約数和(自身を含む): 48936960

約数和(自身を除く): 28936686

約数列:

[1, 2, 3, 6, 7, 14, 19, 21, 38, 42, 57, 71, 114, 133, 142, 213, 266, 353, 399, 426, 497, 706, 798, 994, 1059, 1349, 1491, 2118, 2471, 2698, 2982, 4047, 4942, 6707, 7413, 8094, 9443, 13414, 14826, 18886, 20121, 25063, 28329, 40242, 46949, 50126, 56658, 75189, 93898, 140847, 150378, 175441, 281694, 350882, 476197, 526323, 952394, 1052646, 1428591, 2857182, 3333379, 6666758, 10000137, 20000274]

約数ペア:

[(1, 20000274), (2, 10000137), (3, 6666758), (6, 3333379), (7, 2857182), (14, 1428591), (19, 1052646), (21, 952394), (38, 526323), (42, 476197), (57, 350882), (71, 281694), (114, 175441), (133, 150378), (142, 140847), (213, 93898), (266, 75189), (353, 56658), (399, 50126), (426, 46949), (497, 40242), (706, 28329), (798, 25063), (994, 20121), (1059, 18886), (1349, 14826), (1491, 13414), (2118, 9443), (2471, 8094), (2698, 7413), (2982, 6707), (4047, 4942)]