720286720

素因数分解:

$2^{10}\times 5^1\times {\mathrm{140681}}^1$

素因数の和:140706

約数の個数: 44

約数和(自身を含む): 1727856324

約数和(自身を除く): 1007569604

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1024, 1280, 2560, 5120, 140681, 281362, 562724, 703405, 1125448, 1406810, 2250896, 2813620, 4501792, 5627240, 9003584, 11254480, 18007168, 22508960, 36014336, 45017920, 72028672, 90035840, 144057344, 180071680, 360143360, 720286720]

約数ペア:

[(1, 720286720), (2, 360143360), (4, 180071680), (5, 144057344), (8, 90035840), (10, 72028672), (16, 45017920), (20, 36014336), (32, 22508960), (40, 18007168), (64, 11254480), (80, 9003584), (128, 5627240), (160, 4501792), (256, 2813620), (320, 2250896), (512, 1406810), (640, 1125448), (1024, 703405), (1280, 562724), (2560, 281362), (5120, 140681)]