19652720

素因数分解:

$2^4\times 5^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{197}}^1$

素因数の和:282

約数の個数: 80

約数和(自身を含む): 48612960

約数和(自身を除く): 28960240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 40, 43, 58, 80, 86, 116, 145, 172, 197, 215, 232, 290, 344, 394, 430, 464, 580, 688, 788, 860, 985, 1160, 1247, 1576, 1720, 1970, 2320, 2494, 3152, 3440, 3940, 4988, 5713, 6235, 7880, 8471, 9976, 11426, 12470, 15760, 16942, 19952, 22852, 24940, 28565, 33884, 42355, 45704, 49880, 57130, 67768, 84710, 91408, 99760, 114260, 135536, 169420, 228520, 245659, 338840, 457040, 491318, 677680, 982636, 1228295, 1965272, 2456590, 3930544, 4913180, 9826360, 19652720]

約数ペア:

[(1, 19652720), (2, 9826360), (4, 4913180), (5, 3930544), (8, 2456590), (10, 1965272), (16, 1228295), (20, 982636), (29, 677680), (40, 491318), (43, 457040), (58, 338840), (80, 245659), (86, 228520), (116, 169420), (145, 135536), (172, 114260), (197, 99760), (215, 91408), (232, 84710), (290, 67768), (344, 57130), (394, 49880), (430, 45704), (464, 42355), (580, 33884), (688, 28565), (788, 24940), (860, 22852), (985, 19952), (1160, 16942), (1247, 15760), (1576, 12470), (1720, 11426), (1970, 9976), (2320, 8471), (2494, 7880), (3152, 6235), (3440, 5713), (3940, 4988)]