219441280

素因数分解:

$2^7\times 5^1\times {\mathrm{199}}^1\times {\mathrm{1723}}^1$

素因数の和:1941

約数の個数: 64

約数和(自身を含む): 527544000

約数和(自身を除く): 308102720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 199, 320, 398, 640, 796, 995, 1592, 1723, 1990, 3184, 3446, 3980, 6368, 6892, 7960, 8615, 12736, 13784, 15920, 17230, 25472, 27568, 31840, 34460, 55136, 63680, 68920, 110272, 127360, 137840, 220544, 275680, 342877, 551360, 685754, 1102720, 1371508, 1714385, 2743016, 3428770, 5486032, 6857540, 10972064, 13715080, 21944128, 27430160, 43888256, 54860320, 109720640, 219441280]

約数ペア:

[(1, 219441280), (2, 109720640), (4, 54860320), (5, 43888256), (8, 27430160), (10, 21944128), (16, 13715080), (20, 10972064), (32, 6857540), (40, 5486032), (64, 3428770), (80, 2743016), (128, 1714385), (160, 1371508), (199, 1102720), (320, 685754), (398, 551360), (640, 342877), (796, 275680), (995, 220544), (1592, 137840), (1723, 127360), (1990, 110272), (3184, 68920), (3446, 63680), (3980, 55136), (6368, 34460), (6892, 31840), (7960, 27568), (8615, 25472), (12736, 17230), (13784, 15920)]