25480960

素因数分解:

$2^8\times 5^1\times {\mathrm{17}}^1\times {\mathrm{1171}}^1$

素因数の和:1209

約数の個数: 72

約数和(自身を含む): 64680336

約数和(自身を除く): 39199376

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 64, 68, 80, 85, 128, 136, 160, 170, 256, 272, 320, 340, 544, 640, 680, 1088, 1171, 1280, 1360, 2176, 2342, 2720, 4352, 4684, 5440, 5855, 9368, 10880, 11710, 18736, 19907, 21760, 23420, 37472, 39814, 46840, 74944, 79628, 93680, 99535, 149888, 159256, 187360, 199070, 299776, 318512, 374720, 398140, 637024, 749440, 796280, 1274048, 1498880, 1592560, 2548096, 3185120, 5096192, 6370240, 12740480, 25480960]

約数ペア:

[(1, 25480960), (2, 12740480), (4, 6370240), (5, 5096192), (8, 3185120), (10, 2548096), (16, 1592560), (17, 1498880), (20, 1274048), (32, 796280), (34, 749440), (40, 637024), (64, 398140), (68, 374720), (80, 318512), (85, 299776), (128, 199070), (136, 187360), (160, 159256), (170, 149888), (256, 99535), (272, 93680), (320, 79628), (340, 74944), (544, 46840), (640, 39814), (680, 37472), (1088, 23420), (1171, 21760), (1280, 19907), (1360, 18736), (2176, 11710), (2342, 10880), (2720, 9368), (4352, 5855), (4684, 5440)]