12740480

素因数分解:

$2^7\times 5^1\times {\mathrm{17}}^1\times {\mathrm{1171}}^1$

素因数の和:1207

約数の個数: 64

約数和(自身を含む): 32276880

約数和(自身を除く): 19536400

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 64, 68, 80, 85, 128, 136, 160, 170, 272, 320, 340, 544, 640, 680, 1088, 1171, 1360, 2176, 2342, 2720, 4684, 5440, 5855, 9368, 10880, 11710, 18736, 19907, 23420, 37472, 39814, 46840, 74944, 79628, 93680, 99535, 149888, 159256, 187360, 199070, 318512, 374720, 398140, 637024, 749440, 796280, 1274048, 1592560, 2548096, 3185120, 6370240, 12740480]

約数ペア:

[(1, 12740480), (2, 6370240), (4, 3185120), (5, 2548096), (8, 1592560), (10, 1274048), (16, 796280), (17, 749440), (20, 637024), (32, 398140), (34, 374720), (40, 318512), (64, 199070), (68, 187360), (80, 159256), (85, 149888), (128, 99535), (136, 93680), (160, 79628), (170, 74944), (272, 46840), (320, 39814), (340, 37472), (544, 23420), (640, 19907), (680, 18736), (1088, 11710), (1171, 10880), (1360, 9368), (2176, 5855), (2342, 5440), (2720, 4684)]