988491520

素因数分解:

$2^8\times 5^1\times {\mathrm{17}}^1\times {\mathrm{45427}}^1$

素因数の和:45465

約数の個数: 72

約数和(自身を含む): 2507080464

約数和(自身を除く): 1518588944

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, 1280, 1360, 2176, 2720, 4352, 5440, 10880, 21760, 45427, 90854, 181708, 227135, 363416, 454270, 726832, 772259, 908540, 1453664, 1544518, 1817080, 2907328, 3089036, 3634160, 3861295, 5814656, 6178072, 7268320, 7722590, 11629312, 12356144, 14536640, 15445180, 24712288, 29073280, 30890360, 49424576, 58146560, 61780720, 98849152, 123561440, 197698304, 247122880, 494245760, 988491520]

約数ペア:

[(1, 988491520), (2, 494245760), (4, 247122880), (5, 197698304), (8, 123561440), (10, 98849152), (16, 61780720), (17, 58146560), (20, 49424576), (32, 30890360), (34, 29073280), (40, 24712288), (64, 15445180), (68, 14536640), (80, 12356144), (85, 11629312), (128, 7722590), (136, 7268320), (160, 6178072), (170, 5814656), (256, 3861295), (272, 3634160), (320, 3089036), (340, 2907328), (544, 1817080), (640, 1544518), (680, 1453664), (1088, 908540), (1280, 772259), (1360, 726832), (2176, 454270), (2720, 363416), (4352, 227135), (5440, 181708), (10880, 90854), (21760, 45427)]