20125215544

素因数分解:

$2^3\times 7^1\times {\mathrm{53}}^1\times {\mathrm{311}}^1\times {\mathrm{21803}}^1$

素因数の和:22180

約数の個数: 64

約数和(自身を含む): 44082455040

約数和(自身を除く): 23957239496

約数列:

[1, 2, 4, 7, 8, 14, 28, 53, 56, 106, 212, 311, 371, 424, 622, 742, 1244, 1484, 2177, 2488, 2968, 4354, 8708, 16483, 17416, 21803, 32966, 43606, 65932, 87212, 115381, 131864, 152621, 174424, 230762, 305242, 461524, 610484, 923048, 1155559, 1220968, 2311118, 4622236, 6780733, 8088913, 9244472, 13561466, 16177826, 27122932, 32355652, 47465131, 54245864, 64711304, 94930262, 189860524, 359378849, 379721048, 718757698, 1437515396, 2515651943, 2875030792, 5031303886, 10062607772, 20125215544]

約数ペア:

[(1, 20125215544), (2, 10062607772), (4, 5031303886), (7, 2875030792), (8, 2515651943), (14, 1437515396), (28, 718757698), (53, 379721048), (56, 359378849), (106, 189860524), (212, 94930262), (311, 64711304), (371, 54245864), (424, 47465131), (622, 32355652), (742, 27122932), (1244, 16177826), (1484, 13561466), (2177, 9244472), (2488, 8088913), (2968, 6780733), (4354, 4622236), (8708, 2311118), (16483, 1220968), (17416, 1155559), (21803, 923048), (32966, 610484), (43606, 461524), (65932, 305242), (87212, 230762), (115381, 174424), (131864, 152621)]