81015040

素因数分解:

$2^8\times 5^1\times {\mathrm{167}}^1\times {\mathrm{379}}^1$

素因数の和:567

約数の個数: 72

約数和(自身を含む): 195733440

約数和(自身を除く): 114718400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 167, 256, 320, 334, 379, 640, 668, 758, 835, 1280, 1336, 1516, 1670, 1895, 2672, 3032, 3340, 3790, 5344, 6064, 6680, 7580, 10688, 12128, 13360, 15160, 21376, 24256, 26720, 30320, 42752, 48512, 53440, 60640, 63293, 97024, 106880, 121280, 126586, 213760, 242560, 253172, 316465, 485120, 506344, 632930, 1012688, 1265860, 2025376, 2531720, 4050752, 5063440, 8101504, 10126880, 16203008, 20253760, 40507520, 81015040]

約数ペア:

[(1, 81015040), (2, 40507520), (4, 20253760), (5, 16203008), (8, 10126880), (10, 8101504), (16, 5063440), (20, 4050752), (32, 2531720), (40, 2025376), (64, 1265860), (80, 1012688), (128, 632930), (160, 506344), (167, 485120), (256, 316465), (320, 253172), (334, 242560), (379, 213760), (640, 126586), (668, 121280), (758, 106880), (835, 97024), (1280, 63293), (1336, 60640), (1516, 53440), (1670, 48512), (1895, 42752), (2672, 30320), (3032, 26720), (3340, 24256), (3790, 21376), (5344, 15160), (6064, 13360), (6680, 12128), (7580, 10688)]