13857620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{31}}^2\times {\mathrm{103}}^1$

素因数の和:181

約数の個数: 72

約数和(自身を含む): 34699392

約数和(自身を除く): 20841772

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 62, 70, 103, 124, 140, 155, 206, 217, 310, 412, 434, 515, 620, 721, 868, 961, 1030, 1085, 1442, 1922, 2060, 2170, 2884, 3193, 3605, 3844, 4340, 4805, 6386, 6727, 7210, 9610, 12772, 13454, 14420, 15965, 19220, 22351, 26908, 31930, 33635, 44702, 63860, 67270, 89404, 98983, 111755, 134540, 197966, 223510, 395932, 447020, 494915, 692881, 989830, 1385762, 1979660, 2771524, 3464405, 6928810, 13857620]

約数ペア:

[(1, 13857620), (2, 6928810), (4, 3464405), (5, 2771524), (7, 1979660), (10, 1385762), (14, 989830), (20, 692881), (28, 494915), (31, 447020), (35, 395932), (62, 223510), (70, 197966), (103, 134540), (124, 111755), (140, 98983), (155, 89404), (206, 67270), (217, 63860), (310, 44702), (412, 33635), (434, 31930), (515, 26908), (620, 22351), (721, 19220), (868, 15965), (961, 14420), (1030, 13454), (1085, 12772), (1442, 9610), (1922, 7210), (2060, 6727), (2170, 6386), (2884, 4805), (3193, 4340), (3605, 3844)]