20170176940

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{639511}}^1$

素因数の和:639622

約数の個数: 48

約数和(自身を含む): 45123966720

約数和(自身を除く): 24953789780

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 83, 95, 166, 190, 332, 380, 415, 830, 1577, 1660, 3154, 6308, 7885, 15770, 31540, 639511, 1279022, 2558044, 3197555, 6395110, 12150709, 12790220, 24301418, 48602836, 53079413, 60753545, 106158826, 121507090, 212317652, 243014180, 265397065, 530794130, 1008508847, 1061588260, 2017017694, 4034035388, 5042544235, 10085088470, 20170176940]

約数ペア:

[(1, 20170176940), (2, 10085088470), (4, 5042544235), (5, 4034035388), (10, 2017017694), (19, 1061588260), (20, 1008508847), (38, 530794130), (76, 265397065), (83, 243014180), (95, 212317652), (166, 121507090), (190, 106158826), (332, 60753545), (380, 53079413), (415, 48602836), (830, 24301418), (1577, 12790220), (1660, 12150709), (3154, 6395110), (6308, 3197555), (7885, 2558044), (15770, 1279022), (31540, 639511)]