78115240

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{227}}^1\times {\mathrm{1229}}^1$

素因数の和:1474

約数の個数: 64

約数和(自身を含む): 201916800

約数和(自身を除く): 123801560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 227, 280, 454, 908, 1135, 1229, 1589, 1816, 2270, 2458, 3178, 4540, 4916, 6145, 6356, 7945, 8603, 9080, 9832, 12290, 12712, 15890, 17206, 24580, 31780, 34412, 43015, 49160, 63560, 68824, 86030, 172060, 278983, 344120, 557966, 1115932, 1394915, 1952881, 2231864, 2789830, 3905762, 5579660, 7811524, 9764405, 11159320, 15623048, 19528810, 39057620, 78115240]

約数ペア:

[(1, 78115240), (2, 39057620), (4, 19528810), (5, 15623048), (7, 11159320), (8, 9764405), (10, 7811524), (14, 5579660), (20, 3905762), (28, 2789830), (35, 2231864), (40, 1952881), (56, 1394915), (70, 1115932), (140, 557966), (227, 344120), (280, 278983), (454, 172060), (908, 86030), (1135, 68824), (1229, 63560), (1589, 49160), (1816, 43015), (2270, 34412), (2458, 31780), (3178, 24580), (4540, 17206), (4916, 15890), (6145, 12712), (6356, 12290), (7945, 9832), (8603, 9080)]