858641740

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{43853}}^1$

素因数の和:43962

約数の個数: 48

約数和(自身を含む): 1989217440

約数和(自身を除く): 1130575700

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 89, 110, 178, 220, 356, 445, 890, 979, 1780, 1958, 3916, 4895, 9790, 19580, 43853, 87706, 175412, 219265, 438530, 482383, 877060, 964766, 1929532, 2411915, 3902917, 4823830, 7805834, 9647660, 15611668, 19514585, 39029170, 42932087, 78058340, 85864174, 171728348, 214660435, 429320870, 858641740]

約数ペア:

[(1, 858641740), (2, 429320870), (4, 214660435), (5, 171728348), (10, 85864174), (11, 78058340), (20, 42932087), (22, 39029170), (44, 19514585), (55, 15611668), (89, 9647660), (110, 7805834), (178, 4823830), (220, 3902917), (356, 2411915), (445, 1929532), (890, 964766), (979, 877060), (1780, 482383), (1958, 438530), (3916, 219265), (4895, 175412), (9790, 87706), (19580, 43853)]