28203520

素因数分解:

$2^9\times 5^1\times {\mathrm{23}}^1\times {\mathrm{479}}^1$

素因数の和:525

約数の個数: 80

約数和(自身を含む): 70709760

約数和(自身を除く): 42506240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 32, 40, 46, 64, 80, 92, 115, 128, 160, 184, 230, 256, 320, 368, 460, 479, 512, 640, 736, 920, 958, 1280, 1472, 1840, 1916, 2395, 2560, 2944, 3680, 3832, 4790, 5888, 7360, 7664, 9580, 11017, 11776, 14720, 15328, 19160, 22034, 29440, 30656, 38320, 44068, 55085, 58880, 61312, 76640, 88136, 110170, 122624, 153280, 176272, 220340, 245248, 306560, 352544, 440680, 613120, 705088, 881360, 1226240, 1410176, 1762720, 2820352, 3525440, 5640704, 7050880, 14101760, 28203520]

約数ペア:

[(1, 28203520), (2, 14101760), (4, 7050880), (5, 5640704), (8, 3525440), (10, 2820352), (16, 1762720), (20, 1410176), (23, 1226240), (32, 881360), (40, 705088), (46, 613120), (64, 440680), (80, 352544), (92, 306560), (115, 245248), (128, 220340), (160, 176272), (184, 153280), (230, 122624), (256, 110170), (320, 88136), (368, 76640), (460, 61312), (479, 58880), (512, 55085), (640, 44068), (736, 38320), (920, 30656), (958, 29440), (1280, 22034), (1472, 19160), (1840, 15328), (1916, 14720), (2395, 11776), (2560, 11017), (2944, 9580), (3680, 7664), (3832, 7360), (4790, 5888)]