12704126800

素因数分解:

$2^4\times 5^2\times {\mathrm{257}}^1\times {\mathrm{123581}}^1$

素因数の和:123856

約数の個数: 60

約数和(自身を含む): 30640673916

約数和(自身を除く): 17936547116

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 257, 400, 514, 1028, 1285, 2056, 2570, 4112, 5140, 6425, 10280, 12850, 20560, 25700, 51400, 102800, 123581, 247162, 494324, 617905, 988648, 1235810, 1977296, 2471620, 3089525, 4943240, 6179050, 9886480, 12358100, 24716200, 31760317, 49432400, 63520634, 127041268, 158801585, 254082536, 317603170, 508165072, 635206340, 794007925, 1270412680, 1588015850, 2540825360, 3176031700, 6352063400, 12704126800]

約数ペア:

[(1, 12704126800), (2, 6352063400), (4, 3176031700), (5, 2540825360), (8, 1588015850), (10, 1270412680), (16, 794007925), (20, 635206340), (25, 508165072), (40, 317603170), (50, 254082536), (80, 158801585), (100, 127041268), (200, 63520634), (257, 49432400), (400, 31760317), (514, 24716200), (1028, 12358100), (1285, 9886480), (2056, 6179050), (2570, 4943240), (4112, 3089525), (5140, 2471620), (6425, 1977296), (10280, 1235810), (12850, 988648), (20560, 617905), (25700, 494324), (51400, 247162), (102800, 123581)]