840320

素因数分解:

$2^7\times 5^1\times {\mathrm{13}}^1\times {\mathrm{101}}^1$

素因数の和:133

約数の個数: 64

約数和(自身を含む): 2184840

約数和(自身を除く): 1344520

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 101, 104, 128, 130, 160, 202, 208, 260, 320, 404, 416, 505, 520, 640, 808, 832, 1010, 1040, 1313, 1616, 1664, 2020, 2080, 2626, 3232, 4040, 4160, 5252, 6464, 6565, 8080, 8320, 10504, 12928, 13130, 16160, 21008, 26260, 32320, 42016, 52520, 64640, 84032, 105040, 168064, 210080, 420160, 840320]

約数ペア:

[(1, 840320), (2, 420160), (4, 210080), (5, 168064), (8, 105040), (10, 84032), (13, 64640), (16, 52520), (20, 42016), (26, 32320), (32, 26260), (40, 21008), (52, 16160), (64, 13130), (65, 12928), (80, 10504), (101, 8320), (104, 8080), (128, 6565), (130, 6464), (160, 5252), (202, 4160), (208, 4040), (260, 3232), (320, 2626), (404, 2080), (416, 2020), (505, 1664), (520, 1616), (640, 1313), (808, 1040), (832, 1010)]