199976720

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{251}}^1\times {\mathrm{433}}^1$

素因数の和:720

約数の個数: 80

約数和(自身を含む): 488218752

約数和(自身を除く): 288242032

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 40, 46, 80, 92, 115, 184, 230, 251, 368, 433, 460, 502, 866, 920, 1004, 1255, 1732, 1840, 2008, 2165, 2510, 3464, 4016, 4330, 5020, 5773, 6928, 8660, 9959, 10040, 11546, 17320, 19918, 20080, 23092, 28865, 34640, 39836, 46184, 49795, 57730, 79672, 92368, 99590, 108683, 115460, 159344, 199180, 217366, 230920, 398360, 434732, 461840, 543415, 796720, 869464, 1086830, 1738928, 2173660, 2499709, 4347320, 4999418, 8694640, 9998836, 12498545, 19997672, 24997090, 39995344, 49994180, 99988360, 199976720]

約数ペア:

[(1, 199976720), (2, 99988360), (4, 49994180), (5, 39995344), (8, 24997090), (10, 19997672), (16, 12498545), (20, 9998836), (23, 8694640), (40, 4999418), (46, 4347320), (80, 2499709), (92, 2173660), (115, 1738928), (184, 1086830), (230, 869464), (251, 796720), (368, 543415), (433, 461840), (460, 434732), (502, 398360), (866, 230920), (920, 217366), (1004, 199180), (1255, 159344), (1732, 115460), (1840, 108683), (2008, 99590), (2165, 92368), (2510, 79672), (3464, 57730), (4016, 49795), (4330, 46184), (5020, 39836), (5773, 34640), (6928, 28865), (8660, 23092), (9959, 20080), (10040, 19918), (11546, 17320)]