21702519280

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{239}}^1\times {\mathrm{87313}}^1$

素因数の和:87578

約数の個数: 80

約数和(自身を含む): 54567757440

約数和(自身を除く): 32865238160

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 239, 260, 478, 520, 956, 1040, 1195, 1912, 2390, 3107, 3824, 4780, 6214, 9560, 12428, 15535, 19120, 24856, 31070, 49712, 62140, 87313, 124280, 174626, 248560, 349252, 436565, 698504, 873130, 1135069, 1397008, 1746260, 2270138, 3492520, 4540276, 5675345, 6985040, 9080552, 11350690, 18161104, 20867807, 22701380, 41735614, 45402760, 83471228, 90805520, 104339035, 166942456, 208678070, 271281491, 333884912, 417356140, 542562982, 834712280, 1085125964, 1356407455, 1669424560, 2170251928, 2712814910, 4340503856, 5425629820, 10851259640, 21702519280]

約数ペア:

[(1, 21702519280), (2, 10851259640), (4, 5425629820), (5, 4340503856), (8, 2712814910), (10, 2170251928), (13, 1669424560), (16, 1356407455), (20, 1085125964), (26, 834712280), (40, 542562982), (52, 417356140), (65, 333884912), (80, 271281491), (104, 208678070), (130, 166942456), (208, 104339035), (239, 90805520), (260, 83471228), (478, 45402760), (520, 41735614), (956, 22701380), (1040, 20867807), (1195, 18161104), (1912, 11350690), (2390, 9080552), (3107, 6985040), (3824, 5675345), (4780, 4540276), (6214, 3492520), (9560, 2270138), (12428, 1746260), (15535, 1397008), (19120, 1135069), (24856, 873130), (31070, 698504), (49712, 436565), (62140, 349252), (87313, 248560), (124280, 174626)]