268864540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{149}}^1\times {\mathrm{12889}}^1$

素因数の和:13054

約数の個数: 48

約数和(自身を含む): 649656000

約数和(自身を除く): 380791460

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 149, 298, 596, 745, 1043, 1490, 2086, 2980, 4172, 5215, 10430, 12889, 20860, 25778, 51556, 64445, 90223, 128890, 180446, 257780, 360892, 451115, 902230, 1804460, 1920461, 3840922, 7681844, 9602305, 13443227, 19204610, 26886454, 38409220, 53772908, 67216135, 134432270, 268864540]

約数ペア:

[(1, 268864540), (2, 134432270), (4, 67216135), (5, 53772908), (7, 38409220), (10, 26886454), (14, 19204610), (20, 13443227), (28, 9602305), (35, 7681844), (70, 3840922), (140, 1920461), (149, 1804460), (298, 902230), (596, 451115), (745, 360892), (1043, 257780), (1490, 180446), (2086, 128890), (2980, 90223), (4172, 64445), (5215, 51556), (10430, 25778), (12889, 20860)]