201181520

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{233}}^1\times {\mathrm{251}}^1$

素因数の和:540

約数の個数: 80

約数和(自身を含む): 482594112

約数和(自身を除く): 281412592

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 215, 233, 251, 344, 430, 466, 502, 688, 860, 932, 1004, 1165, 1255, 1720, 1864, 2008, 2330, 2510, 3440, 3728, 4016, 4660, 5020, 9320, 10019, 10040, 10793, 18640, 20038, 20080, 21586, 40076, 43172, 50095, 53965, 58483, 80152, 86344, 100190, 107930, 116966, 160304, 172688, 200380, 215860, 233932, 292415, 400760, 431720, 467864, 584830, 801520, 863440, 935728, 1169660, 2339320, 2514769, 4678640, 5029538, 10059076, 12573845, 20118152, 25147690, 40236304, 50295380, 100590760, 201181520]

約数ペア:

[(1, 201181520), (2, 100590760), (4, 50295380), (5, 40236304), (8, 25147690), (10, 20118152), (16, 12573845), (20, 10059076), (40, 5029538), (43, 4678640), (80, 2514769), (86, 2339320), (172, 1169660), (215, 935728), (233, 863440), (251, 801520), (344, 584830), (430, 467864), (466, 431720), (502, 400760), (688, 292415), (860, 233932), (932, 215860), (1004, 200380), (1165, 172688), (1255, 160304), (1720, 116966), (1864, 107930), (2008, 100190), (2330, 86344), (2510, 80152), (3440, 58483), (3728, 53965), (4016, 50095), (4660, 43172), (5020, 40076), (9320, 21586), (10019, 20080), (10040, 20038), (10793, 18640)]